2 syllables:
-acean, -ation, acean, aition, ation, b-ration, baishan, caishen, cation, dation, gratian, haitian, haitien, hatian, k-ration, kation, latian, lation, mation, nation, ration, sation, station, taishan, thracian, xlation, z nation

3 syllables:
-fication, -isation, -ization, a-ration, ablation, adnation, aeration, afflation, agflation, agnation, aid station, air station, alation, alsatian, alsation, aquation, aration, arctation, assation, bination, bitnation, blandation, boation, bus station, c-ration, c-station, cantation, cap-haitien, captation, carnation, cassation, castration, caudation, causation, celation, cenation, cessation, cetacean, chelation, chrismation, cibation, citation, clamation, claustration, claymation, coach station, coaxation, cognation, colation, collation, conation, conflation, cooptation, creation, cremation, crenation, cribration, crispation, croatian, crustacean, crustation, cubation, cumacean, cunctation, curation, curtation, curvation, dalmatian, dalmatien, dalmation, damnation, darnation, daycation, dealation, debation, decstation, deflation, delation, dentation, deration, dictation, difflation, dignation, dilation, disflation, ditation, donatien, donation, dotation, duplation, duration, efflation, elation, enation, endstation, ennation, erration, estacion, falcation, fellation, fetation, fibration, fication, filmation, filtration, fixation, flagration, flammation, flirtation, floatation, flotation, flustration, fluxation, foetation, formation, foundation, friation, frication, frondation, frustration, fundacion, furcation, fuscation, galatian, gas station, gelation, gemmation, gestation, glycation, gradation, grassation, grivation, groundation, gustation, guttation, gyration, halation, haustration, hiation, himation, horatian, hortation, humation, hydration, illation, imation, inflation, ingflation, isation, ization, jactation, jobation, jumpstation, juration, lactation, lallation, latration, laudation, lavation, laxation, legation, levation, libation, libration, ligation, limation, liquation, lobation, location, luctation, lunation, lurcation, lusatian, lustration, lutation, luxation, mactation, manation, mancation, menstration, mentation, migration, mimmation, monstration, moration, motation, mouillation, mundation, mutation, namation, narration, natation, negation, nervation, neuration, newsnation, nextstation, nictation, nidation, nitration, nivation, nodation, notation, novatian, novation, nudation, nugation, nunation, nunnation, nutation, oblation, optation, oration, orbation, outstation, ovation, pacation, painstation, palmation, palpation, pancratian, pankration, pay-station, peltation, pentation, perflation, phaeacian, phocacean, phonation, piation, pinnation, piscation, placation, planation, plantation, plasmation, playstation, plication, poblacion, potation, precation, predacean, predation, prelation, prensation, prestation, privation, probation, prolation, pronation, proration, prostration, pulsation, punctation, pupation, purgation, quartation, quassation, quotation, racemation, raumstation, reboation, reflation, relation, reptation, rhyacian, rixation, roc nation, rogation, roration, rotation, ructation, runcation, sacration, saltation, salvation, sanation, sarmatian, scalation, scanlation, scortation, scp foundation, scrutation, sedation, seguestration, sensation, septation, serration, shore station, shrinkflation, siccation, signation, siltation, slumpflation, solation, sonation, sortation, space station, spallation, sparcstation, spectation, spiration, spoilation, sputation, squamation, squassation, stagflation, stagnation, stallation, starvation, staycation, stellation, striation, stupration, sublation, substation, sudation, sufflation, sulcation, sulfation, sulphation, summation, surgation, tardation, tarnation, taxation, temptation, tentation, testacean, testation, tetration, thinkstation, thinstation, titration, toolstation, tractation, tradestation, train station, tralation, tranation, translation, transvasation, truncation, updation, vacation, vallation, vastation, vaxstation, velation, venation, vennation, vernation, vexation, vibration, vocation, volation, votation, workstation, xxxtentacion, zonation

4 syllables:
abberation, abberration, abdication, aberration, abjuration, ablactation, ablegation, abnegation, abnodation, abrogation, absentation, acceptation, acclamation, acclimation, accubation, accusation, acervation, acieration, activation, actuation, acuation, acylation, adaptation, adequation, adhortation, adjuration, adlegation, admiration, adoration, adornation, adrogation, adulation, adumbration, adunation, advermation, advocation, aerostation, aestivation, affectation, affirmation, affixation, affrication, aggeration, aggradation, aggravation, aggregation, agitation, agregation, albication, alkylation, allectation, allegation, alligation, allocation, alteration, altercation, alternation, alutation, amblimation, ambulation, amidation, amination, amplexation, ampliation, amputation, amratian, angulation, angustation, anhelation, anhydration, animation, annexation, annhilation, annotation, annulation, antiquation, aplication, appalachian, appellation, applanation, application, apprecation, approbation, aprication, arbitration, arcuation, arenation, argentation, argutation, arrentation, arrestation, arrogation, asian nation, asperation, aspiration, asportation, assentation, assignation, assination, assocation, astrogation, atterration, attestation, attrectation, aucupation, augmentation, auguration, aurigation, auscultation, automation, autonation, aversation, aviacion, aviation, avigation, avocation, avolation, awolnation, babestation, back-formation, backwardation, balkan nation, ballotation, balneation, balsamation, baptization, barfulation, bifurcation, biliation, bilocation, blastulation, blatteration, blaxploitation, blood relation, bloviation, bombilation, bombination, botheration, brachiation, brecciation, bromination, bruceploitation, cachinnation, calcination, calcitration, calculation, calibration, caligation, cameration, cancelation, cancellation, canceration, cannulation, cantillation, canulation, capillation, capitation, capsulation, captivation, carbocation, carbonation, carburation, carination, caseation, castellation, castigation, catenation, cavillation, cavitation, celebration, cementation, cerebration, chatteration, chemigation, chlorination, cicuration, ciliation, cineration, circination, circulation, citrination, claudication, co-creation, co-location, co-optation, co-relation, coadaptation, coadunation, coaptation, coarctation, cogitation, cohobation, colligation, collimation, colliquation, collocation, colluctation, colocation, coloration, colostration, colouration, combination, comessation, comfort station, commendation, commensation, commentation, commigration, commination, commoration, commutation, comparation, compellation, compensation, compilation, complexation, complication, comportation, compotation, comprecation, comprobation, compurgation, computation, concavation, concentration, concertation, concitation, conclamation, concremation, concussation, condamnation, condemnation, condensation, condonation, confirmation, confiscation, conflagration, conformation, confortation, confrication, confrontation, confutation, congelation, conglobation, congregation, coniacian, conization, conjugation, conjuration, connotation, consecration, conservation, consignation, consolacion, consolation, consommation, conspiration, conspissation, conspurcation, constatation, constellation, consternation, constipation, constupration, consultation, consummation, contemplation, contentation, contestation, contignation, contrectation, conurbation, conversation, convocation, cooperation, coporation, copulation, corelation, coronation, corotation, corp, corp., corporation, correlation, corrivation, corrugation, cortication, coruscation, crastination, crenelation, crenellation, crenulation, crepitation, crimination, cruciation, cruentation, culmination, cultivation, cumulation, cupellation, cuspidation, cybernation, cyclization, d'aviation, datamation, deaeration, dealbation, dealkylation, deambulation, deamidation, deamination, deauration, debacchation, debarkation, debellation, decantation, decentration, decertation, decimation, declamation, declaration, declination, decollation, decoration, decreation, decrustation, decubation, decurtation, decussation, dedication, defaecation, defalcation, defamation, defecation, defedation, deflagration, defloration, defoedation, deformation, defraudation, degradation, degravation, degredation, degustation, dehortation, dehydration, dejeration, dekoration, delactation, delapsation, delassation, deleation, delectation, delegation, delibation, delibration, deligation, deliquation, deliration, demarcation, demarkation, dementation, demigration, demonstration, denegation, denervation, denidation, denigration, denitration, denization, denotation, dentilation, denudation, dephlegmation, depilation, deplantation, deplication, deploitation, deploration, deplumation, deportation, depravation, deprecation, depredation, deprivation, depuration, deputation, deraination, derivation, derogation, desecration, desiccation, designation, desolation, desperation, despoilation, desponsation, despumation, desquamation, dessication, dessiccation, destillation, destination, desudation, deterration, detestation, detonation, detruncation, deturbation, deturpation, deuteration, devastation, deviation, devitation, devocation, devoration, dextrorotation, differentation, digitation, dilatation, dimication, diphthongation, disboscation, disceptation, dischronation, disclamation, disclination, disgradation, disgregation, disinflation, dislocation, dismutation, dispensation, displantation, disputation, dissentation, dissertation, dissipation, distillation, disturbation, diurnation, divagation, divination, divulgation, domination, dressing station, dubitation, dulcoration, duplication, earth's rotation, ebonation, eburnation, ecomstation, edentation, education, efformation, effrenation, ejulation, elastration, elevation, elinguation, eliquation, elixation, elocation, elongation, eluctation, eluxation, emanation, embarcation, embarkation, embrocation, emendation, emication, emigration, emmigration, emplastration, emulation, emuscation, enarration, enatation, encrustation, encystation, endorsation, enervation, engastration, engraftation, enielation, enodation, eolation, epilation, epotation, epulation, epuration, equitation, ereptation, eretation, erogation, eructation, escalation, estimation, estivation, estuation, evagation, eventration, eviration, evitation, evocation, evolation, evulgation, exaltation, exantlation, exaptation, exaration, excalation, excantation, excarnation, excavation, excecation, excitation, exclamation, exclaustration, excreation, excubation, excusation, execration, exfetation, exfiltration, exhalation, exhortation, exhumation, exiccation, exoration, exornation, exossation, expectation, expiation, expilation, expiration, expiscation, explanation, explantation, explication, exploitation, exploration, exportation, exprobration, expugnation, expurgation, exsiccation, exsudation, exsufflation, extillation, extirpation, extrication, extubation, exudation, exultation, exundation, fabrication, fabulation, factorisation, farreation, fasciation, fascination, fatigation, februation, fecundation, federation, feneration, fenestration, feriation, fermentation, fertigation, festination, fibrillation, fibrination, figuration, filiation, filling station, fimbriation, fire station, fissipation, fissuration, fistulation, flabellation, flagellation, flagitation, floccillation, flocculation, floriation, fluctuation, fluoridation, fluorination, flusteration, focillation, foliation, fomentation, forcipation, forestation, formication, formulation, fornication, foveation, fractionation, fragmentation, francisation, francization, fraternation, frequentation, fructuation, frumentation, fulguration, fulmination, fumigation, funeration, funimation, furfuration, fustigation, gallinacean, gamestation, gastrulation, gemination, gemmulation, generation, gene mutation, germination, glaciation, glandulation, glomeration, gloriation, glutination, graduation, granulation, gratulation, gravidation, gravitation, gubernation, gurgitation, habitation, heat prostration, hebetation, hebraization, herniation, hesitation, hibernation, honestation, humectation, hybernation, hydratation, hyemation, hyphenation, i-formation, i-mutation, ideation, ification, ignoration, illiquation, illustration, illutation, imbrication, imigration, imitation, immanation, immigration, immolation, immutation, impanation, impartation, impastation, impetration, implantation, implication, imploration, importation, imprecation, impregnation, improbation, impugnation, impuration, imputation, in-migration, inaquation, inauration, incantation, incarnation, incavation, incensation, inceration, inchoation, incitation, inclamation, inclination, inclinnation, incrassation, incremation, increpation, incrustation, incubation, inculcation, incurvation, indagation, indentation, indexation, indication, indignation, indorsation, induration, inescation, infestation, infesttation, infeudation, infiltration, infixation, inflamation, inflammation, information, infucation, infumation, infurcation, infuscation, ingannation, inhalation, inhiation, inhumation, inlagation, innervation, innovation, inondation, inquartation, inquination, inscenation, insectation, insiccation, insolation, inspiration, inspissation, installation, instauration, instigation, instillation, insuccation, insufflation, insulation, insultation, integration, intensation, intentation, intergration, intimation, intonation, intrication, intubation, inundation, invination, inviscation, invitation, invocation, iodation, iration, irisation, irrelation, irrigation, irritation, irroration, irrumation, iteration, jactitation, jaculation, jubilation, jugulation, kombination, kongfrontation, konversation, konzentration, laceration, lachrymation, lacrimation, lacrymation, laicisation, lamellation, lamentation, lamination, lancination, laniation, lapidation, lapillation, latitation, laureation, legislation, levigation, leviration, levitation, liberation, licitation, limitation, lineation, liquidation, literation, litigation, loan translation, lobulation, loculation, lookout station, lorication, lubrication, lucubration, lumination, maceration, machination, maculation, majoration, malaxation, maleformation, malformation, malleation, malrotation, malversation, mamillation, mammillation, mancipation, manducation, margination, marination, marmoration, masterbation, mastication, masturbation, maturation, maximation, mediation, medication, meditation, medullation, melioration, memoization, mendication, menostation, menstruation, mensuration, mercuration, methanation, methylation, metrication, micronation, microstation, ministration, minoration, miscegnation, miscitation, miscreation, miseration, misformation, mislactation, mislocation, misquotation, misrelation, missummation, mistranslation, mitigation, moderation, modulation, molestation, morcellation, mordication, morsitation, mortification, morulation, motivation, mucronation, muneration, murmuration, musculation, mussitation, mutilation, mutuation, nauseation, navigation, nebulation, nervuration, neurulation, nictitation, nidulation, nitrosation, nodulation, nomination, nucleation, numeration, nummulation, nuncupation, nundination, nunsploitation, nutrication, obduration, oberration, obfirmation, obfuscation, objuration, objurgation, oblatration, oblectation, obligacion, obligation, obliquation, obluctation, obscuration, obsecration, observation, obsignation, obstination, obstipation, obtestation, obtrectation, obtruncation, obtundation, obturation, obumbration, obviation, occecation, occultation, occupation, ocellation, oestruation, offuscation, omination, oneration, operation, opination, oppilation, oppugnation, opsonation, optimation, orchestration, ordination, oscillation, oscitation, osculation, ostentation, out-migration, ovulation, oxidation, oxydation, ozonation, ozploitation, pabulation, pagination, paid vacation, pair creation, pair formation, palliation, palpebration, palpitation, panelation, papulation, paralation, parcellation, parentation, passivation, patination, patriation, pectination, peculation, pegylation, pejoration, pencilmation, penetration, peptisation, peptization, peragration, percolation, perduration, perennation, pererration, perforation, perlustration, permeation, permutation, pernoctation, peroration, perpetration, perpotation, perscrutation, personation, perspiration, perturbation, pestilation, pestillation, petrol station, pigmentation, pignoration, pistillation, pixelation, pixellation, pixilation, pixillation, placentation, plastination, platinization, pocketstation, point mutation, police station, pollenation, pollination, polling station, polycation, polystation, ponctuation, ponderation, population, postillation, postulation, power station, praefloration, preadaptation, preciation, predication, prefixation, prefloration, preformation, pregustation, prelibation, premonstration, prenylation, preparation, presensation, presentation, preservation, proclamation, procreation, procuration, profanation, profligation, progradation, programmation, prolongation, promanation, propagation, properation, propination, propugnation, propulsation, prorogation, prosternation, protestation, protonation, provocation, proximation, publication, pullulation, pumping station, punctuation, puncturation, pustulation, quantisation, quantitation, quantization, quiritation, radiation, radication, raft foundation, railroad station, railway station, re-creation, re-formation, readaptation, reaggravation, realisation, realization, reamputation, recantation, recitation, reclamation, reclination, recordation, recreation, recubation, recurvation, recusation, reformation, refoundation, refrenation, refrication, refutation, regelation, registration, regulation, rehydration, reinstation, relaxation, relegation, relevation, relocation, reluctation, remigration, remonstration, remote station, renegation, renovation, reparation, repedation, replantation, replication, reputation, reservation, resignation, resonation, respiration, restagnation, restauration, restoration, resudation, retardation, retractation, retranslation, revelation, reverbnation, revocation, roboration, rubrication, ruination, rumination, rustication, s-corporation, sacculation, sagination, salination, salivation, salutation, sampling station, sanitation, sarculation, satiation, satisdation, saturation, saudization, scatteration, scintillation, sciscitation, scutellation, secundation, segmentation, segregation, self-castration, self-centration, self-creation, self-delation, semination, separation, seperation, sequestration, seriation, serrulation, service station, sevocation, sexploitation, sibilation, sideration, simulation, sinistration, sinuation, situation, skin sensation, snatiation, social station, solmisation, solmization, sonication, souplantation, spacestation, spatulation, speciation, speculation, sphacelation, spiculation, splenization, spoliation, sporulation, stabulation, stercoration, sternutation, stimulation, stipulation, strangulation, stridulation, strigilation, strobilation, structuration, stylisation, stylization, subarration, subarrhation, subhastation, subjugation, sublevation, subligation, sublimation, subluxation, subnotation, subornation, subrogation, subsannation, subsignation, subsinnation, subundation, subway station, succussation, suffixation, suffocation, suggillation, sulfonation, sulphonation, sulphuration, superlation, superstation, supination, suppalpation, supplantation, supplication, supportation, suppuration, supputation, surculation, surrogation, suscitation, suspensation, suspiration, sustentation, susurration, suturation, syncopation, syndication, tabulation, taliation, tarditation, tarnspiration, taste sensation, temeration, terebration, termination, tesselation, tessellation, thunderation, tincturation, titillation, titivation, tittivation, titubation, toleration, tolutation, touch sensation, toxication, trabeation, tractoration, transcolation, transcreation, transfixation, transforation, transformation, transfretation, translavation, translocation, transmeation, transmigration, transmutation, transnatation, transpiration, transplantation, transportation, transudation, transvolation, trepanation, trephination, trepidation, tribulation, trifurcation, trilobation, triplication, trituration, trucidation, trullization, trutination, tubulation, turbination, tv station, ubication, ulceration, ultimation, ululation, undulation, unimation, univation, upgradation, urination, urtication, usurpation, vaccination, vacillation, vacuation, vacuolation, validation, valuation, vaporation, vapulation, variation, varication, variegation, vectitation, vegetation, velitation, vellication, venditation, venenation, veneration, ventilation, verberation, verfication, vermination, vertebration, vesication, vexillation, viduation, vindication, violation, visitation, vitiation, volitation, volutation, vulneration, weather station, xpectation

5 syllables:
abacination, abbreviation, abirritation, abjudication, ablaqueation, abomination, abreviation, absecon station, absquatulation, acceleration, accentuation, acceptilation, acclimatation, accombination, accommodation, accomodation, accreditation, acculturation, accumulation, acetylation, acidulation, across the nation, acumination, adfiliation, adjudication, admensuration, administration, admortization, adnomination, adosculation, adulteration, aerification, affabulation, affiliation, afforestation, african nation, aftersensation, aggeneration, agglomeration, agglutination, aggrandization, agnomination, agricolation, albification, alembication, alienation, alimentation, alineation, alkalization, alleviation, allineation, alliteration, alluviation, alveolation, amalgamation, amelioration, ammoniation, amortisation, amortization, amplification, analyzation, angariation, anglicisation, anglicization, anihilation, animutation, annhiliation, annihilation, annomination, annumeration, annunciation, anodisation, anodization, anovulation, anti-inflation, anticipation, antihalation, antilibration, antiquization, antizipation, apocopation, apodisation, apodization, apophallation, apostemation, appendication, appersonation, appreciation, appropinquation, appropriation, approximation, arabisation, arabization, arbitaration, arborisation, arborization, areolation, argumentation, arietation, ariolation, arpeggiation, articulation, asphyxiation, assasination, assassination, assecuration, asseveration, assibilation, assimilation, assimulation, association, assoziation, astipulation, atmolyzation, atomisation, atomization, attemperation, attenuation, authentication, authorisation, authorization, autonomation, autorisation, autorotation, autoxidation, averruncation, back-propagation, backpropagation, bacterization, balkanisation, balkanization, barbarisation, barbarization, basification, bastardisation, bastardization, beat generation, beautification, bilification, bioaeration, biofiltration, bioturbation, bonification, bowdlerisation, bronchodilation, brusselization, brutalisation, brutalization, business relation, calamistration, calcification, calumniation, canalisation, canalization, cannulisation, cannulization, canonisation, canonization, canulisation, canulization, capacitation, capitulation, caprification, carbonatation, carbonisation, carbonization, carbonylation, carboxylation, carbunculation, carburization, carcinisation, carnification, cartelization, castrametation, casualisation, casualization, catechisation, catechization, cauterisation, cauterization, centesimation, centralisation, centralization, centrifugation, centuriation, cephalization, certification, change of location, channelisation, channelization, chaptalization, chitinization, chondrification, christianisation, christianization, chylification, chymification, cicatrisation, circumcursation, circumgestation, circumgyration, circumnutation, circumrotation, circumvallation, circumvolation, citification, citrullination, civilisation, civilization, cladification, clarification, classification, climatisation, cliticization, closed corporation, close corporation, co-education, co-operation, co-ordination, co-stimulation, coacervation, coagmentation, coagulation, coalification, cocainization, codeclination, codification, codistillation, coeducation, cogeneration, cognomination, cohabitation, coindication, coinquination, cointegration, collaboration, collineation, colonisation, colonization, colorisation, colorization, columniation, commemoration, commensuration, commiseration, communication, communisation, communization, compagination, compartmentation, complementation, concameration, concatenation, concelebration, conciliation, concorporation, concretization, concrimination, conduplication, confabulation, confarreation, confederation, configuration, conglaciation, conglomeration, conglutination, congratulation, connumeration, consarcination, consideration, consociation, consolidation, consopiation, contamination, contemperation, contesseration, continuation, contraindication, contrarotation, contravallation, coordination, cornification, corporatization, corradiation, corroboration, counterpulsation, countervallation, covariation, craterization, creolisation, creolization, cross-correlation, cross-pollination, cross-presentation, cross-validation, cryoablation, cryoturbation, crystalization, crystallisation, crystallization, curarization, customisation, customization, cutinization, cyanidation, damnification, dandification, de-escalation, de-iodination, deactivation, deaminization, debilitation, decaffeination, decannulation, decapitation, decapsulation, decarbonation, deceleration, decerebration, dechlorination, deciduation, decoloration, decompensation, decompilation, deconcentration, deconsecration, decorrelation, decortication, decrepitation, dedecoration, deduplication, defatigation, defenestration, defibrillation, defibrination, defiguration, defiliation, deflocculation, defoliation, deforciation, deforestation, defragmentation, degeneration, deglaciation, deglutination, degranulation, dehonestation, deification, deionization, delaceration, delacrymation, delamination, deliberation, delimitation, delineation, delitigation, deltafication, demethylation, demodulation, demonisation, demonization, demotivation, demyelination, denaturation, denizenation, denomination, densification, dentalization, denticulation, denumeration, denunciation, deoppilation, deordination, deoxidation, depauperation, depeculation, depigmentation, depreciation, deprotonation, depurination, deputization, deracination, deratization, derealisation, deregistration, deregulation, desalination, desaturation, desegmentation, desegregation, desideration, despecfication, despeciation, despoliation, desulphuration, determination, dethronization, detonization, detoxication, devaluation, devaporation, devirgination, dialyzation, dieselisation, diffarreation, digitisation, digitization, digladiation, dignification, dijudication, dilaceration, dilaniation, dilapidation, dilucidation, dimerisation, dimerization, dimidiation, dinumeration, diphthongisation, diphthongization, diradiation, direct quotation, disaffirmation, disaggregation, disanimation, disapplication, disapprobation, discalceation, discoloration, discolouration, discommendation, disconfirmation, disconsolation, discontentation, discretization, discrimination, disembarkation, disestimation, disfiguration, disforestation, disinclination, disinfestation, disinformation, disintegration, disjudication, disneyfication, disobligation, disoccupation, disoperation, disordination, disoxidation, disreputation, dissemination, disseveration, dissimilation, dissimulation, dissociation, distanciation, distermination, divarication, diverberation, divinization, documentation, dogmatization, dokumentation, dollarisation, dollarization, domestication, down-regulation, downregulation, dramatisation, dramatization, dulcification, dynamisation, dynamization, dysregulation, dystrophication, echolocation, edification, edulcoration, effascination, effectuation, effemination, effigiation, ejaculation, ejerkulation, elaboration, elapidation, electrization, elementation, elicitation, elimination, elucidation, elucubration, elutriation, eluviation, emaceration, emaciation, emaculation, emancipation, emargination, emasculation, embolisation, embolization, encapsidation, encapsulation, enculturation, endenization, energization, enialation, ennialation, enolization, enthronisation, enthronization, entortilation, enucleation, enumeration, enunciation, envenomation, epilogation, epoxidation, equalisation, equalization, equilibration, equivocation, eradiation, eradication, erotization, eternization, etherization, ethoxylation, etiolation, euthanisation, euthanization, eutrophication, evacuation, evagination, evaluation, evaporation, eventilation, eventuation, evigilation, evisceration, exacerbation, exacervation, exacination, exaggeration, exagitation, examination, exanimation, exasperation, exauctoration, exauguration, exauthoration, excalceation, excerebration, excogitation, excoriation, excortication, excruciation, exenteration, exercitation, exestuation, exfoliation, exheredation, exhilaration, existimation, exoneration, expatiation, expatriation, expectoration, expeditation, expoliation, expostulation, expropriation, exsanguination, exspoliation, exsuscitation, extenuation, extermination, extimulation, extrapolation, extravagation, extravasation, extuberation, exulceration, exuperation, exuviation, facilitation, factorization, falsification, fantastication, faradisation, faradization, fasciculation, federalization, felicitation, feminisation, feminization, ferrugination, ferrumination, fertilisation, fertilization, fetishisation, fetishization, feudalisation, fiberization, fifth-generation, finalisation, finalization, finlandization, firnification, first-generation, fissigemmation, fistulization, flabbergastation, flanderization, florification, flossification, fluidisation, fluidization, fluoridisation, fluoridization, focalisation, focalization, foreordination, formalisation, formulization, fortification, fossilisation, fossilization, fox corporation, fractionization, fraternisation, fraternization, frenchification, fructification, funambulation, fundoplication, gaelicisation, gallicization, galvanisation, galvanization, gamification, gasification, gasoline station, gastroplication, gelatination, gemmification, generalization, genetization, geniculation, gentrification, geolocation, germanisation, germanization, gesticulation, ghettoisation, ghettoization, girls' generation, glamorisation, glamorization, glamourisation, glamourization, globalisation, globalization, glocalization, glorification, glottalization, glycerination, glycosylation, grade separation, grammatication, grangerization, granitization, graphitization, graticulation, gratification, grossification, gyrification, habilitation, habituation, hallucination, halogenation, haploidisation, hariolation, harmonisation, harmonization, haruspication, heat of formation, hellenisation, hellenization, hemofiltration, hepatisation, hepatization, herborization, hierarchisation, hierarchization, historicization, hominization, homologation, hornification, horrification, horripilation, humanisation, humanization, humicubation, humification, humiliation, hybe corporation, hybridisation, hybridization, hydroboration, hydrogenation, hydrolyzation, hydroxylation, hyper-inflation, hyperhydration, hyperinflation, hyperlactation, hypnotization, hypohydration, hypothecation, idealisation, idolisation, idolization, illaqueation, illecebration, illimitation, illumination, illuviation, ilumination, imagination, imjaystation, immasculation, immiseration, immoderation, immunisation, immunization, imperforation, impersonation, imperturbation, impignoration, impinguation, implementation, imposthumation, impreparation, improperation, impropriation, improvisation, inactivation, inactuation, inadaptation, inadequation, inaffectation, inanimation, inapplication, inauguration, incameration, incapsulation, incarceration, incardination, incatenation, incineration, incommodation, incontentation, incorporation, incrementation, incrimination, incultivation, inculturation, indenization, indigitation, indoctrination, inebriation, inexpectation, infatuation, infeodation, infibulation, infrigidation, infuriation, ingemination, ingeneration, ingratiation, ingravidation, ingurgitation, inhabitation, initiation, innidiation, innoculation, inobservation, inoccupation, inoculation, inoperation, inordination, inosculation, inquietation, insalivation, insanitation, insemination, insinuation, instantiation, instimulation, instrumentation, insusurration, integumation, inteneration, interbastation, intercalation, intergradation, interlocation, interlucation, interlunation, intermeation, intermication, intermigration, intermination, intermutation, interpellation, interpolation, interpretation, interrelation, interrogation, interspiration, inthronization, intimidation, intoleration, intoxication, intravasation, inusitation, invagination, invalidation, investigation, inveteration, invigilation, invigoration, invultuation, in operation, in that location, iodination, iodisation, iodization, ionisation, ionization, iridization, irradiation, islamisation, islamization, itemisation, itemization, itineration, japanimation, japanization, jargonization, job application, jollification, judaization, justification, kanalisation, kapitulation, karstification, kommunikation, kurdification, l-vocalization, labanotation, labefactation, laciniation, laevorotation, laicization, laterization, late registration, latinisation, latinization, legalisation, legalization, legal relation, legitimation, lemmatisation, lemmatization, levorotation, liberalization, licentiation, lignification, lionisation, lionization, liquification, lithification, lixiviation, loan application, localisation, localization, lubrification, ludification, lumbarization, luteinization, luxuriation, lyonisation, lyonization, machicolation, machine translation, macromutation, madefication, maderization, magnetisation, magnetization, magnification, magyarization, majorization, malacissation, maladaptation, malayisation, malconformation, malobservation, malpresentation, mammonization, manifestation, manipulation, manustupration, marbleisation, marbleization, martyrization, materiation, matriculation, maximisation, maximization, mean deviation, mechanisation, mechanization, medullization, melanization, mellification, memorisation, memorization, mentalization, mercerization, mesmerisation, mesmerization, metainformation, metalization, metallization, metastization, metrification, micengenation, microfiltration, micronisation, micronization, microperation, micropulsation, minification, minimisation, minimization, misacceptation, misallegation, misallocation, misapplication, miscalculation, miscegenation, miscollocation, miscomputation, misconsecration, miseducation, misestimation, misexplanation, misexplication, misinformation, misordination, mobilisation, mobilization, modernisation, modernization, modification, mollification, monetisation, monetization, mongrelization, moralisation, moralization, morigeration, most-favored-nation, motorisation, motorization, multilocation, multiplication, multiplikation, mummification, mundification, mutarotation, myelination, mystification, nanofiltration, nanoindentation, narcotisation, narcotization, nasalisation, nasalization, nationalisation, nationalization, naturalization, nazification, nazisploitation, nebulisation, nebulization, necessitation, negotiation, neoformation, nervous prostration, neurotization, neutralisation, neutralization, next-generation, nidification, nigrification, nitrification, nobilitation, noctambulation, noctivagation, nonexportation, nonimportation, nonlimitation, nonpreparation, nonpresentation, normalisation, normalization, nostrification, notarization, notification, novelisation, novelization, nudification, nullification, objectivation, obliteration, obnubilation, obsigillation, obstetrication, obtenebration, officiation, oil conservation, opitulation, opsonisation, opsonization, optimisation, optimization, orbiculation, organisation, organization, orientation, origination, ornamentation, ossification, ostracization, overhydration, overinflation, overtaxation, oxidisation, oxidization, oxygenation, ozonization, pacification, paganization, painful sensation, palification, palletization, palmitoylation, pandiculation, panelization, panification, paralysation, paralyzation, participation, partner relation, pascalization, pasteurisation, pasteurization, patrocination, patronisation, patronization, pauperisation, pauperization, pedicellation, pediculation, pelletization, penalisation, penalization, peneplanation, peptonization, perambulation, peregrination, periclitation, peroxidation, perpetuation, perseveration, persianization, perterebration, pervaporation, pervestigation, pervigilation, petrification, phase modulation, philosophation, phi correlation, phlogistication, phonetization, phosphatization, phosphorylation, photoablation, preexpectation, picturization, pidginization, pillarisation, pixelization, plagiarisation, plagiarization, planification, plasticization, plebification, pluralisation, pluralization, pneumatization, podsolisation, podsolization, podzolization, polarisation, polarization, polish notation, pollicitation, pollicization, polonization, pontification, porphyrization, post-reformation, posterisation, posterization, postgraduation, potentiation, potentization, pre-congregation, pre-installation, preaccusation, preachification, preambulation, precancellation, prechlorination, precipitation, precogitation, precomputation, preconization, prededication, predestination, predomination, preexcitation, prefabrication, prefecundation, prefiguration, prefix notation, prefoliation, preimplantation, preindication, preintimation, prejudication, premedication, premeditation, prenomination, prenunciation, preoccupation, preordination, preponderation, prepublication, preregistration, pressure sensation, pressurisation, pressurization, prestigiation, prettification, prevarication, primelocation, principiation, private foundation, privatisation, privatization, privitization, procrastination, progeneration, prognostication, proliferation, prolification, prononciation, pronounciation, pronunciation, propitiation, prosemination, protuberation, publification, pulse modulation, pulverisation, pulverization, purification, putrification, quadruplication, qualification, quantification, quintuplication, racemisation, racemization, racialization, radiostation, radio station, ramification, randomisation, randomization, rarefication, rarification, rasterisation, rasterization, rate of inflation, ratification, rationalisation, rationalization, re-education, re-embarkation, re-presentation, reactivation, reaffirmation, reallocation, reanimation, reapplication, rebaptization, recalcitration, recalculation, recalibration, recidivation, reciprocation, recirculation, recognization, recombination, recommendation, recompensation, recompilation, reconcentration, reconcilation, recondensation, reconfirmation, reconsecration, recrimination, rectification, recuperation, redecoration, rededication, redintegration, redistillation, reduplication, reeducation, reembarkation, reexportation, refabrication, refluctuation, refocillation, reforestation, reformulation, refridgeration, refrigeration, regeneration, regermination, regimentation, reglementation, regurgitation, reification, reimplantation, reimportation, reincarnation, reinnervation, reinstallation, reintegration, reionization, reiteration, rejuvenation, rejuvination, reliquidation, remastication, remediation, rememoration, remuneration, renaturation, renomination, renumeration, renunciation, reoccupation, reoperation, reordination, reoxidation, repagination, repatriation, repopulation, representation, repristination, republication, repudiation, repullulation, reradiation, reregistration, reregulation, resegregation, restimulation, resupination, resuscitation, retaliation, reticulation, retrogradation, revaluation, revegetation, revendication, reverberation, revisitation, rhetorication, robotization, romanisation, romanization, routinization, royalization, rubification, ruggedisation, ruggedization, ruralisation, ruralization, russification, sacralization, saffronisation, salification, salinisation, salinization, sanctification, sanguification, sanitisation, sanitization, sanskritisation, satirization, saudiization, scandalisation, scandalization, scarification, schematisation, schematization, schilerization, sclerotization, scorification, scrutinization, sedimentation, self-abnegation, self-accusation, self-admiration, self-affirmation, self-condemnation, self-condensation, self-consecration, self-contemplation, self-cultivation, self-degradation, self-deprecation, self-education, self-estimation, self-exaltation, self-flagellation, self-gratulation, self-immolation, self-indignation, self-medication, self-motivation, self-mutilation, self-oscillation, self-pollination, self-preservation, self-realisation, self-reformation, self-regulation, self-replication, self-revelation, self-stimulation, sensitisation, sensitization, sermocination, set decoration, sex segregation, shell corporation, signalisation, signalization, signification, silanization, simplification, sinicization, sissification, skew correlation, skolemisation, slavicisation, snivilisation, socialisation, socialization, social relation, soil conservation, solarisation, solarization, solemnisation, solemnization, solicitation, soliitation, somatisation, somatization, somnambulation, sonification, sophistication, spatialization, spatial relation, specialisation, specialization, specification, speechification, spezifikation, spherification, spirantization, sporification, stabilisation, stabilization, stalinisation, stalinization, standardisation, standardization, standing ovation, star divination, station-to-station, sterilisation, sterilization, stigmatisation, stigmatization, straticulation, stratification, stultification, subagitation, subalternation, subconstellation, suberization, subincusation, subinfeudation, subirrigation, sublineation, subministration, subordination, subpopulation, subsidisation, subsidization, substantiation, subtilisation, subtilization, suffix notation, suffumigation, sulfurization, sulphurization, summarisation, summarization, superfetation, superlactation, superlucration, supernatation, superpurgation, suppeditation, supplementation, syllabication, syllogization, symbolisation, symbolization, symmetrization, synchronisation, synchronization, syncretization, syphilization, systemisation, systemization, tabloidization, tactile sensation, tantalisation, tantalization, tariffication, teleportation, temporisation, temporization, tenderisation, tenderization, tergiversation, terrorisation, terrorization, testamentation, testification, tetanization, thematization, theorisation, theorization, thermalisation, thermalization, third-generation, thurification, tivoization, tokenization, totalization, totipalmation, trabeculation, tranquilization, tranquillization, transactivation, transamidation, transamination, transanimation, transcapsidation, transculturation, transfiguratien, transfiguration, transliteration, transmethylation, transpeptidation, transvaluation, traumatisation, traumatization, triangulation, tribalisation, tribalization, trifluctuation, trilateration, tripudiation, trivialisation, trombipulation, trust corporation, trypsinization, tubal ligation, tuberculation, tumultuation, turkification, tussiculation, tyndallization, typification, uberisation, uglification, ukrainization, ultrafiltration, umbilication, unexpectation, unification, uninstallation, unionisation, unionization, unitisation, unitization, unreformation, unsaturation, up-regulation, upregulation, urbanisation, urbanization, ustulation, utilisation, utilization, vaccinization, vacuolisation, vacuolization, valorisation, valorization, valve corporation, vandalisation, vandalization, vaporisation, vaporization, variolation, vasodilation, vasoligation, vaticination, vectorisation, vectorization, vehiculation, veiled accusation, velarization, verbalisation, verbalization, verbal creation, verbification, verbigeration, verification, vermiculation, vernalisation, vernalization, versification, vesiculation, viatication, victimisation, victimization, vigesimation, vilification, villagization, vindemiation, vinification, virilisation, virilization, visualisation, visualization, vitalisation, vitalization, vitrification, vituperation, vivification, vocalisation, vocalization, volcanization, vulcanisation, vulcanization, vulgarisation, vulgarization, weaponization, weatherization, westernisation, westernization, wind generation, winterization, within temptation, with inspiration, with moderation, with ostentation, with speculation, x-corporation, x-radiation, yuppification, zincification, zivilisation, zombification

6 syllables:
abalienation, abarticulation, abevacuation, abrenunciation, absolutization, acclimatisation, acclimatization, acclimitization, acetification, achromatization, acidification, acme corporation, active application, actualisation, actualization, acupuncturation, acustimulation, adipoceration, adp-ribosylation, adsignification, adult education, aerosolization, africanization, alcoholisation, alcoholization, alkalinization, allegorization, allotransplantation, alphabetisation, alphabetization, alpha radiation, amelification, ammonification, anaesthetization, anatomization, androgenization, anejaculation, anesthetization, animalisation, animalization, annihiliation, annualisation, annuitization, anti-information, anti-vaccination, antivaccination, arabicization, arithmetization, aromatisation, aromatization, artistic creation, aryanization, astronavigation, authentification, auto-correlation, auto-oxidation, autoamputation, autocorrelation, autofecundation, autoimmunization, autoinoculation, autointoxication, autoionization, automatisation, automatization, autooxidation, autoregulation, autotoxication, autotransplantation, auto limitation, axis of rotation, background radiation, beatification, belarusization, beneficiation, beta-oxidation, beta radiation, binary notation, bioaugmentation, bioconcentration, biodegradation, biosequestration, biostimulation, biotinylation, biotransformation, bituminization, bitwise operation, blood coagulation, board of education, bourgeoisification, bowdlerization, broadcast syndication, broad interpretation, bronchodilatation, bureaucratisation, bureaucratization, bush administration, californication, calorification, cannibalisation, cannibalization, capitalisation, capitalization, caramelisation, caramelization, categorisation, categorization, catheterisation, catheterization, change orientation, characterisation, characterization, chemicalization, chemical notation, chemoradiation, chevron corporation, chromopertubation, cicatrization, circularisation, circularization, circumambulation, circumdenudation, circumnavigation, circumstantiation, civilianization, co-determination, co-ossification, co-precipitation, codetermination, collectivisation, collectivization, colocalization, commercialisation, commercialization, commodification, commoditization, communalization, compactification, complement fixation, complexification, computerisation, computerization, conceptualisation, conceptualization, congeliturbation, consignification, consubstantiation, consumerization, containerisation, containerization, control operation, coprecipitation, counter-adaptation, counter-reformation, counterdemonstration, counterirritation, counterreformation, counter reformation, covert operation, credit application, criminalisation, criminalization, cross-classification, cross-contamination, cross-examination, cross-fertilisation, cross-fertilization, cross-multiplication, cross-stratification, cryopreservation, cryptic coloration, daily variation, de-ba'athification, de-baathification, de-nazification, de-stalinisation, de-stalinization, deacidification, deafferentation, decalcification, decarbonisation, decarbonization, decarbonylation, decarboxylation, decarburisation, decarburization, decasualization, decentalisation, decentralisation, decentralization, decertification, dechristianization, decimalisation, decimalization, decimal notation, declassification, decolonisation, decolonization, decolorisation, decolorization, decolourization, decommunization, decontamination, decossackization, decreolization, dedollarisation, defeminization, definitization, deflectionization, defuzzification, degasification, deglamorization, deglobalization, dehumanisation, dehumanization, dehydrogenation, dekulakization, delegitimation, delignification, delocalisation, delocalization, demagnetisation, demagnetization, demobilisation, demobilization, democratisation, democratization, demonetisation, demonetization, demoralisation, demoralization, demystification, denazification, denitrification, denormalization, deodorisation, deodorization, deossification, deoxidization, deoxygenation, depersonalisation, depersonalization, dephlogistication, dephosphorization, dephosphorylation, depolarisation, depolarization, depressurisation, depressurization, deproteinization, derealization, derivatization, desacralization, desalinisation, desalinization, desensitisation, desensitization, desertification, desilverization, despecification, destabilisation, destabilization, destalinisation, destalinization, desulfurization, desulphurisation, desynchronisation, desynchronization, deterioration, detoxification, detribalisation, detribalization, devitalisation, devitalization, devitrification, devocalization, dezincification, de jure segregation, diazotization, dichotomisation, dichotomization, differentiation, digitalisation, digitalization, direct correlation, disaccommodation, disaffiliation, disambiguation, disappropriation, disarticulation, disassimilation, disassociation, discontinuation, disequilibration, disincorporation, disintoxication, disorganisation, disorganization, disorientation, disoxygenation, disproportionation, disqualification, disvaluation, diversification, dolomitization, domiciliation, dreamworks animation, dust contamination, dysmyelination, easygamestation, eburnification, eco-innovation, economisation, economization, electrification, electrolyzation, electromigration, electroporation, emmetropization, emulsification, encephalization, envenomization, epimerization, epithelization, epitomization, eroticization, esterification, eternal damnation, etherification, european nation, evangelisation, evangelization, exarticulation, excarnification, excommunication, exemplification, exhereditation, experimentation, exponentiation, extemporisation, extemporization, externalisation, externalization, familiarisation, familiarization, feast of dedication, federalisation, fictionalisation, fictionalization, field of operation, financialization, formularization, fossilification, fractionalization, free-association, free association, gamma radiation, gelatification, gelatinisation, gelatinization, generalisation, generification, geometrization, geosequestration, giving medication, glucuronidation, granitification, group participation, gutturalization, haemagglutination, haemoconcentration, harioiation, heat of condensation, hemagglutination, hemoconcentration, heretification, higher education, hispanicization, homogenisation, homogenization, hospitalisation, hospitalization, humidification, hyalinisation, hyalinization, hydroformylation, hydrosilylation, hypercomputation, hyperconjugation, hyperfractionation, hyperoperation, hyperpigmentation, hypersalivation, hyperstimulation, hyperventilation, hypopigmentation, hypostasization, hypostatisation, hypostatization, hypoventilation, idealization, identification, illegalization, illegitimation, immatriculation, immobilisation, immobilization, immortalisation, immortalization, immortification, immunofixation, impatronization, inanitiation, inappreciation, inarticulation, incapacitation, incarnification, incentivisation, incivilization, inconsideration, incoordination, indefatigation, indemnification, indetermination, indianisation, indianization, indigenisation, indigenization, indiscrimination, individuation, infantile fixation, infantilization, informatisation, initialisation, initialization, inorganization, inside information, insubordination, integumentation, intensification, interarboration, intercorporation, interdigitation, interfenestration, interlamination, interlineation, intermediation, intermodulation, internalisation, internalization, interoperation, interpenetration, in collaboration, irregeneration, islamicization, isomerisation, isomerization, italianization, italicisation, italicization, japanification, juvenilization, kaolinization, keratinisation, keratinization, kyoto animation, labialisation, labialization, lapidification, latensification, lateralisation, lateralization, law of gravitation, law of segregation, lecture demonstration, legal separation, legitimisation, legitimization, lexicalisation, lexicalization, liberalisation, lichenification, linearisation, linearization, line organization, linguistic relation, literalization, loan participation, logical relation, logic operation, lyophilisation, lyophilization, lysogenisation, lysogenization, macadamization, machine operation, magnitude relation, make-a-wish foundation, maladministration, malassimilation, maleficiation, manhattanization, marginalisation, marginalization, masculinisation, masculinization, mathematization, mcdonaldization, mediatisation, mediatization, medicalisation, medicalization, medical relation, megacorporation, mental reservation, mental retardation, mercurification, merorganization, meta-information, metabolization, metamotivation, micro-circulation, micro-irrigation, micro-operation, microcirculation, microfabrication, microgeneration, micropigmentation, micropropagation, militarisation, militarization, mineralisation, mineralization, minimalization, misappropriation, misclassification, miscommunication, misimagination, misinterpretation, misorientation, mispronunciation, misrepresentation, missionary station, mithridatization, modularization, monophthongization, monopolisation, monopolization, moral obligation, mortgage application, multicombination, multilateration, murder of xxxtentacion, musicalization, musical notation, mutualization, myelinisation, myelinization, myeloablation, mythologisation, mythologization, nanofabrication, naturalisation, naval installation, neoglaciation, neologization, netflix animation, neuroinflammation, neuromodulation, neurostimulation, neutron radiation, nier reincarnation, nitrogen fixation, nixtamalization, nominalization, non-cooperation, non-discrimination, non-proliferation, non-repudiation, non-solicitation, nonalienation, noncooperation, nondiscrimination, nonparticipation, nonproliferation, nonrepudiation, norwegianization, nuclearization, objectification, objectivisation, objectivization, observation station, opacification, oral presentation, organification, osmoregulation, overcompensation, overestimation, overexploitation, overmedication, overmodulation, overpopulation, overregulation, oversaturation, overstimulation, overt operation, overvaluation, ozonification, palatalization, parallelisation, parallelization, parametrization, parasitization, parentification, parks and recreation, partial correlation, part to whole relation, pasokification, patent application, periodization, peripheralization, personalisation, personalization, personal relation, personification, photodegradation, photoexcitation, photoionisation, photoionization, photooxidation, photorespiration, physicalization, politicisation, politicization, politzerization, polycondensation, polymerisation, polymerization, popularisation, popularization, pornographication, pre-qualification, preadministration, predeliberation, predelineation, predetermination, preexamination, preexistimation, prenotification, prequalification, presignification, prestidigitation, previsualization, printing operation, prioritisation, prioritization, private corporation, pro-globalization, problematization, proselytisation, proselytization, provincialization, pseudocopulation, pseudonymization, pseudoreplication, psychoeducation, public presentation, pulse-width modulation, racial segregation, radappertization, radicalisation, radicalization, radiolocation, rancidification, ratiocination, re-afforestation, re-evaluation, re-examination, reaccreditation, reaffiliation, reafforestation, reappropriation, reassimilation, reauthorization, recanalization, recapitulation, recertification, reclassification, recolonization, reconciliation, reconfiguration, reconsideration, reconsolidation, recontamination, recorporification, recrystallisation, recrystallization, redenomination, redetermination, redocumentation, reedification, reevaluation, reexamination, reforestization, refortification, regionalisation, regionalization, regularisation, regularization, rehabilitation, reharmonisation, reharmonization, rehypothecation, reillumination, reincorporation, reinoculation, reinterpretation, reinvestigation, reinvigoration, relativization, remodification, remonetization, renegotiation, renidification, renormalisation, renormalization, reorganisation, reorganization, reorientation, repolarization, reprivatization, resocialization, retrocopulation, retrovaccination, reunification, revaccination, revalidation, revalorization, revitalisation, revitalization, revivification, rigidification, ritualisation, ritualization, roblox corporation, romanticisation, romanticization, saccharification, saponification, second-generation, sectionalisation, sectionalization, secularisation, secularization, securitisation, securitization, segmentalization, self-actualization, self-alienation, self-annihilation, self-certification, self-congratulation, self-depreciation, self-determination, self-domestication, self-evaluation, self-examination, self-fertilisation, self-fertilization, self-glorification, self-gratification, self-incrimination, self-justification, self-mortification, self-organisation, self-organization, self-perpetuation, self-realization, self-recrimination, self-renunciation, semantic relation, seminification, sensualization, serbianisation, serialisation, serialization, serpentinization, sexualisation, sexualization, sexual relation, silent generation, silicatization, silicification, singularization, skeletonization, solar radiation, solidification, solubilisation, solubilization, sovietization, spaghettification, special education, standard deviation, structuralization, studentification, sublimification, suboptimization, subspecialization, suburbanization, subvocalization, superannuation, supercavitation, supercompensation, supercompilation, superelevation, supererogation, superexaltation, superexcination, superfecundation, superfoetation, superfoliation, superinpregnation, superordination, superovulation, superpermutation, supersaturation, supersemination, supertuberation, supparasitation, swiss confederation, syllabification, systematisation, systematization, t-glottalization, tabularization, talibanization, tautomerization, teleoperation, television station, telomerization, temporal relation, thermoregulation, the hertz corporation, threshold operation, tintinnabulation, toei animation, topicalization, transelementation, transillumination, transistorization, transmogrification, transsubstantiation, transubstantiation, trivialization, tuberculization, ubiquitination, ubiquitylation, uncivilization, underestimation, underpopulation, undervaluation, undetermination, uniformization, unsanctification, unsophistication, unsubstantiation, uralitization, uterogestation, vacuum aspiration, variolization, vascularisation, vascularization, vasodilatation, vasorelaxation, vietnamization, virtualisation, virtualization, visual sensation, vitilitigation, volatilisation, volatilization, warning coloration, water conservation, water of hydration, whole to part relation, without moderation, with consideration, with determination, workmen's compensation, world organization, x-inactivation, x-irradiation, xenotransplantation, zoho corporation

7 syllables:
academic relation, acid precipitation, alter-globalization, americanisation, americanization, aminoacylation, amplitude modulation, anathematisation, anathematization, angle of inclination, anthropomorphization, anti-discrimination, anti-globalization, anticoagulation, antidiscrimination, antitrust legislation, arterialization, asexualization, auditory sensation, auto-inoculation, auto-intoxication, autonegotiation, autophosphorylation, autopurification, autosensitization, axiomatization, baptist denomination, bicapitalisation, binary operation, bioaccumulation, bioinstrumentation, biomagnification, bioremediation, black-body radiation, business organization, by experimentation, canonicalization, carter administration, celestial navigation, chemoembolization, cherenkov radiation, clandestine operation, clinton administration, closely held corporation, cocacolonization, cognitive operation, collateralization, colonialization, compartmentalisation, compartmentalization, computer operation, concrete representation, concurrent operation, conditional relation, contextualisation, contextualization, conventionalisation, conventionalization, copenhagenization, copolymerization, counterproliferation, counterurbanization, criminal conversation, cuticularization, dark field illumination, dark ground illumination, data communication, de-identification, dealcoholization, debituminization, decidualization, decommodification, decriminalisation, decriminalization, dedifferentiation, dedolomitization, defamiliarization, dehumidification, dehydrochlorination, deindividuation, delegitimisation, delegitimization, demand for explanation, demilitarisation, demilitarization, demineralisation, demineralization, demonopolization, demutualisation, demutualization, demythologisation, demythologization, denationalisation, denationalization, denaturalization, denuclearisation, denuclearization, departmentalisation, departmentalization, depoliticisation, depoliticization, depolymerization, desexualization, destructive distillation, desynonymization, de facto segregation, diagonalisation, diagonalization, disintermediation, dissyllabification, diurnal variation, doctor of education, double-elimination, dunkirk evacuation, eggborough power station, electro-puncturation, electrochlorination, electrodesiccation, electron radiation, endoreduplication, epithelialization, etherealization, europeanisation, europeanization, evapotranspiration, exteriorisation, exteriorization, feast of the dedication, female ejaculation, final examination, financial obligation, forisfamiliation, fourfold point correlation, fractional distillation, frequency modulation, grammaticalization, grammatical relation, guilt by association, heat of dissociation, heat of vaporization, hepburn romanization, homosocialization, hyperalimentation, hyperimmunization, hypernormalisation, hyperpolarization, hypersensitization, hypoalimentation, hypocalcification, hyposensitisation, hyposensitization, immunomodulation, immunoregulation, impersonalization, impersonification, indian reservation, indirect correlation, industrialisation, industrialization, inertial navigation, infrared radiation, insider information, intercolumniation, intercommunication, interstratification, iq classification, irreconciliation, isoagglutination, isoimmunization, judicial separation, kendall rank correlation, large-capitalisation, large-capitalization, legal representation, logical implication, logical operation, lukasiewicz notation, lumbar disc herniation, magnetic inclination, magnetic levitation, magnetic variation, marsupialization, master of education, materialisation, materialization, memorialisation, memorialization, mental representation, meta-communication, metacommunication, micro-encapsulation, microencapsulation, micromanipulation, midterm examination, military formation, miniaturisation, miniaturization, mischaracterization, misidentification, multiplex operation, municipalisation, municipalization, mycoremediation, naleadministration, natural elevation, near-field communication, negative correlation, negative stimulation, neurodegeneration, neuroregeneration, nikola corporation, north american nation, object-orientation, occidentalization, olfactory sensation, oligomerisation, oligomerization, operation bagration, optical aberration, oral communication, oral examination, orthogonalization, osseointegration, overdetermination, overelaboration, overpressurization, overqualification, overrepresentation, oversimplification, overspecialization, overutilisation, overutilization, parallel operation, parameterization, paravirtualization, particularisation, particularization, pedestrianisation, pedestrianization, peri-urbanisation, peripheralisation, permineralization, pharyngealization, philanthropic foundation, photocoagulation, photodisintegration, photodissociation, photophosphorylation, photoreactivation, photosensitization, physical education, physical restoration, phytoremediation, point of accumulation, police investigation, politicalization, political relation, polyadenylation, polyesterification, positive correlation, practical application, prestidigitization, professionalisation, professionalization, professional relation, protective coloration, pseudoexfoliation, pseudohallucination, pseudolocalization, psychic communication, python software foundation, racial extermination, radio observation, radio radiation, ralph lauren corporation, rate of acceleration, rate of depreciation, reagan administration, recapitalization, recharacterization, redifferentiation, reintermediation, remilitarisation, remilitarization, remineralization, renationalization, revascularization, reverse polish notation, right of first publication, root-mean-square deviation, scandinavian nation, selective information, self-actualisation, self-differentiation, self-identification, semivitrification, sentimentalisation, sentimentalization, sequential operation, serial operation, serial publication, single-page application, small-capitalisation, small-capitalization, social organization, software documentation, source of illumination, south american nation, spherical aberration, spiritualisation, spiritualization, spurious correlation, subcategorization, superalimentation, supercolumniation, supermarionation, surface assimilation, surgical operation, suspended animation, sympathetic vibration, systemic circulation, telecommunication, telencephalization, telephone conversation, theatricalization, thermocoagulation, the final destination, transdifferentiation, transesterification, ultracentrifugation, underdetermination, underevaluation, underrepresentation, underutilization, under consideration, undifferentiation, universalisation, universalization, unspoken accusation, value orientation, vernacularization, vertical combination, vertical integration, vibroejaculation, victory celebration, visible radiation, warner bros. animation, without consideration, world health organization, world trade organization, written communication

8 syllables:
aegean civilization, afterdepolarization, amphibious demonstration, amphibious operation, animal communication, arithmetic operation, artificial respiration, asynchronous operation, auxiliary operation, badminton world federation, behavior modification, biodeterioration, biomineralization, brown v. board of education, call-with-current-continuation, cardiac resuscitation, cartilaginification, central american nation, character assassination, confidential information, consecutive operation, cradle of civilization, cross-collateralization, cultural appropriation, cytodifferentiation, dehydrohalogenation, deindustrialisation, deindustrialization, deinstitutionalisation, dematerialisation, dematerialization, department of education, department of transportation, digital communication, economic strangulation, editorialization, electrocauterization, electrocoagulation, electroejaculation, electrogalvanization, elementary education, enabling legislation, fiduciary relation, financial organization, freedom from discrimination, geological formation, holy day of obligation, horizontal combination, horizontal integration, hydrodesulfurization, hyperkeratinization, immunopotentiation, immunoprecipitation, individualisation, individualization, institutionalisation, institutionalization, intellectualisation, intellectualization, intelligence operation, interior decoration, internal representation, internationalisation, internationalization, iodolactonization, letters of administration, life insurance corporation, linguistic communication, literal interpretation, majority operation, mathematical notation, mathematical relation, medical examination, military installation, minoan civilization, montessori education, musical organization, national lampoon's vacation, neovascularization, neurorehabilitation, newton's law of gravitation, nondimensionalization, nonlinear correlation, operationalization, overcapitalisation, overcapitalization, overgeneralization, oxo-biodegradation, phacoemulsification, photoisomerization, photopolymerization, postmortem examination, privately held corporation, progressive web application, proletarianization, protestant denomination, psychical communication, pulmonary circulation, radiocommunication, random number generation, reepithelialization, reindustrialization, religious orientation, secondary education, six degrees of separation, sony pictures animation, spontaneous generation, symbolic representation, territorialisation, territorialization, the football association, triboelectrification, undercapitalization, unemployment compensation, ventricular fibrillation, visual communication, vocational education, ws-federation

9 syllables:
anabaptist denomination, anomalous communication, articles of incorporation, artificial insemination, asian football confederation, auditory communication, basic access authentication, boeing 737 next generation, coefficient of correlation, deinstitutionalization, demand for identification, deterritorialization, economic mobilization, electronic communication, el nino southern oscillation, female genital mutilation, health maintenance organization, hydrogen ion concentration, indus valley civilisation, kendall partial rank correlation, kernel density estimation, mathematical operation, microminiaturisation, microminiaturization, multi-factor authentication, mycenaean civilization, myocardial inflammation, neuroimmunomodulation, pecuniary obligation, philosophy of education, physical rehabilitation, pictorial representation, political orientation, professional association, proportional representation, proto-industrialization, reasoning by elimination, robotic process automation, savings and loan association, secretary of education, secretary of transportation, simulacra and simulation, simultaneous operation, through empirical observation, ultraviolet radiation

10 syllables:
certificate of incorporation, correctional rehabilitation, covid-19 misinformation, dewey decimal classification, disney television animation, electromagnetic radiation, federal housing administration, international organization, non-governmental organization, preliminary examination, therapeutic rehabilitation, ultraviolet illumination, vocational rehabilitation

11 syllables:
binary arithmetic operation, federal bureau of investigation, federal home loan mortgage corporation, food and agriculture organization, indian olympic association, international finance corporation, north atlantic treaty organization, original video animation, paramilitary organization, radioimmunoprecipitation, social security administration

12 syllables:
american medical association, cardiopulmonary resuscitation, floccinaucinihilipilification, international labor organization, international labour organization, simulated military operation

13 syllables:
federal deposit insurance corporation, federal national mortgage association, international maritime organization, world meteorological organization

14 syllables:
international development association, national aeronautics and space administration

16 syllables:
international civil aviation organization

23 syllables:
united nations educational scientific and cultural organization

2 syllables:
graven, basin, brazen, hazan, hasten, suasion, caisson, kazan, blazon, craven, nathan, raven, haven, jason, chasten, shaven, maven, asian, mason

3 syllables:
persuasion, unshaven, evasion, malaysian, abrasion, new haven, corrasion, invasion, capsaicin, night raven, occasion, freemason, caucasian, pervasion, equation, emblazon, dissuasion, sea raven, afrasian, clean-shaven, slop basin, smooth-shaven, stonemason, well-shaven

4 syllables:
drainage basin, tidal basin, river basin, tax evasion, wave equation, nganasan, on occasion

5 syllables:
social occasion

6 syllables:
linear equation, personal equation, regression equation

7 syllables:
differential equation, exponential equation

8 syllables:
ceremonial occasion

9 syllables:
partial differential equation