1 syllable:
-stan, ahn, an, ann, anne, bahn, ban, banh, bann, blan, blann, bran, brann, caen, cahn, can, cann, canne, cannes, cepan, chan, clan, cwmbran, dahn, dan, dann, duan, fan, fann, flan, flann, fran, g-man, gahn, gan, gann, glahn, gnann, grahn, gran, grand-, granne, hann, hanne, he-man, jaan, jahn, jan, jan., jann, jp ctan, kan, kann, kanne, klahn, klan, klann, krahn, lahn, lan, lann, ma'an, mahn, mann, manne, nan, pan, panne, pfanne, phan, plan, plan-, pran, rahn, ran, ranh, rann, s-bahn, san, san-x, sanne, scan, scran, shan, span, spane, spann, stan, stane, stann, tan, tann, tanne, than, thanh, tran, tran-, trans-, trans-x, van, vann, vanne, whan, x-man, yahn, yan, zahn, zan

2 syllables:
9-man, a-scan, abca1, abran, adtran, afghan, airtran, alcan, amban, amscan, amtran, anpan, ant-man, an san, ape-man, appin, arctanh, ascan, ash-pan, aspan, aztlan, b-scan, banane, batman, beagan, beaudin, bedpan, beer can, began, begann, berghain, besaint, bethann, bethanne, bhutan, blutfahne, boivin, bouman, bourquin, bousman, boutin, brainpan, brainscan, brakpan, bratpfanne, breadfan, breastpin, brianne, britan, c-span, caftan, calspan, can-can, cancan, cascan, cat-man, cave-man, caveman, ceylan, cezanne, chapin, chauvin, cheyanne, chieftan, christan, chrzan, citran, claudin, comtran, con-man, contran, couchman, coussin, crankpin, cruzan, cspan, cyan, cyan-, dauin, dbscan, dead-man, deadpan, deann, deanne, decan, declan, deehan, deignan, dekan, dextran, diahann, diane, diann, dianne, divan, dizain, doorman, doran, driftpin, drip pan, duignan, dulcian, dupin, duran, dustpan, dyan, dyane, dyspan, e-man, eachann, eat-man, elf-man, endpin, espan, eye-saint, fan-tan, fanfan, farfan, fayanne, faze clan, fibranne, fishman, flagman, floorman, floorplan, floor plan, forman, fortran, for an, fractran, frogman, frostban, fry-pan, frypan, furman, gamesman, game plan, gapan, gaudin, gauguin, gaulin, gauvain, gauvin, gayman, gell-mann, georgann, geurin, ghazan, gill-man, glassman, gosplan, greenspan, gremban, ground plan, guardsman, hackman, hanban, handpan, handspan, hardpan, harpin, hatpin, headpan, headpin, heartscan, helmsman, heptane, hillman, hitman, hitscan, hpa-an, hyotan, icann, ice-man, icetran, imban, incan, inchpin, insan, inspan, iran, irfan, iscan, ispan, istan, ivtran, jaan-e-mann, janean, janeane, japan, jazzman, joann, joanne, johanne, jourdan, kaftan, kanban, kapan, khoisan, kinsman, kistvaen, kneepan, kristan, kurzban, lacan, lapan, lappin, laufbahn, lausanne, lawplan, leann, lehrplan, leighann, lennane, less than, letran, liane, lianne, liban, life-span, lifespan, lin dan, loran, lorfan, louann, louanne, loudin, luann, luanne, lucban, lyanne, lynchpin, m-bahn, macan, macmahon, mactan, madman, madtran, mailman, mainpin, makespan, marplan, marsanne, marstan, maupin, mcan, mccahan, mccan, mccann, mcfann, mcgann, mchan, mcmahon, mcmann, mcshan, merman, milan, milkman, milk can, mixtecan, moisan, moran, more than, mortain, mortran, moss-man, moulin, nanban, nastran, newsman, no-man, noman, nystan, odd-man, oilman, oisin, one-man, optran, os-tan, osanne, outman, outran, outspan, pac-man, pan-pan, papan, pearlman, pecan, petain, pindan, pitpan, plagscan, poulin, preplan, propfan, pushpin, questran, quiktran, quillman, quite an, ram-man, ramban, rattan, redman, reman, replan, richman, rifain, rodin, roisin, rosanne, roseann, roseanne, roussanne, roussin, roxane, roxann, roxanne, ruth-ann, ruth-anne, ruthann, ryann, saltpan, san-fran, sandman, sang lan, sanpan, sapan, sapsan, saran, sauce-pan, saucepan, savane, savanne, scarfpin, schwanpan, scott hann, scroll.in, scrumban, sea fan, sedan, seistan, seungsahn, sharan, showscan, shwan-pan, shyjan, sideman, siegbahn, sigplan, silkman, sirhan, sistan, skidpan, snowman, sobran, soundscan, spectran, speedfan, spokane, sports fan, spray can, srdan, statscan, stew-pan, stilt-man, straenbahn, straw-man, strongman, styan, sub-clan, sudan, sukeban, suntan, susann, susanne, suzann, suzanne, swanpan, swimfan, syntran, systran, t-span, tacscan, tai-pan, taipan, tarzan, tenpin, texscan, tien shan, tiepin, timespan, time plan, tinman, tin can, toofan, torfaen, toussaint, trash can, treetran, tristan, truthahn, tryfan, turan, turfan, turkestan, tympan, u-bahn, unban, unpin, unsaint, utran, vantran, vectran, vennbahn, vianne, vince mcmahon, voisin, vuescan, walkman, wenfan, wingspan, with/in, worldspan, xtran, xu can, yangban, yes-man, youngman, you can, yuyan, ziran, zofran

3 syllables:
aberfan, abram-man, achterbahn, adriane, adrianne, aethelstan, akwesasne, albertan, alihan, alliin, anaplan, anchorman, anti-fan, apnapan, ariane, arianne, athelstan, attic fan, auerhahn, automan, avestan, axle-pin, ayran, bactroban, bakhtaran, balasan, baltistan, bantustan, barrow-man, battle plan, baybayin, beardyman, better than, billycan, biskupin, black-and-tan, black and tan, bogeyman, bogyman, boogeyman, boogyman, bosentan, breitspurbahn, brindaban, businessman, butsudan, calapan, callahan, canavan, candlepin, caravan, caravane, cariban, carryanne, cat-harpin, catapan, chinese shan, chinkapin, chinquapin, clergyman, coffee can, colorman, constantan, cooperman, counterman, counterplan, crisping-pin, d.gray-man, dagestan, daghestan, dantescan, dardistan, decoy-man, deguzman, diovan, donavan, dondestan, donkeyman, dragoman, draguignan, dripping pan, dunavan, dynascan, eliane, eridan, europan, exhaust fan, faliscan, farahkan, farsistan, faturan, fellow-man, ferdinand, firepan, firing-pin, fisherman, french sudan, frying-pan, frying pan, fuel-can, funnyman, furfuran, gachapin, garbage can, gemma chan, genus pan, georgianne, giant-man, gloriane, gugudan, gulistan, ha-erh-pin, hackneyman, hallasan, handyman, harahan, harmattan, heidenhain, hindostan, hindustan, hou yifan, hydro-man, hyperscan, ichiban, infoscan, intertan, jalapin, jaycee chan, jean chauvin, jerrycan, journeyman, juliane, kadamban, karagane, karavan, karkadann, kathryn hahn, kazachstan, kazakhstan, kazakstan, kekistan, kelantan, kellyanne, khalistan, khuzestan, khuzistan, kirghizstan, kirgizstan, kordofan, kronospan, kurdestan, kurdistan, ku klux klan, kyrgystan, kyrgyzstan, ladyman, lazistan, leslie mann, lewis tan, life-of-man, liliane, lion-man, lisa ann, lorestan, loriann, lucianne, luggage van, luopan, luqman, luristan, macho-man, magadan, maliban, man-to-man, manfred mann, mangostan, many an, mariann, marianne, maryann, maryanne, master plan, mattapan, mayapan, melonpan, meprospan, microman, microvan, middleman, midgetman, mike maignan, minivan, minuteman, miri-clan, miruthan, molluscan, moneyman, montespan, motorman, moving van, multi-man, multiscan, murexan, muristan, murrayin, naamkarann, nanalan', nerdistan, nitrospan, noor-ul-ain, nuristan, oliban, omni-man, orianne, other than, overran, overscan, overspan, pakistan, parthiban, patrolman, patty-pan, paul mcgann, paviin, pelecan, pension plan, pentosan, perlecan, pesantran, peter pan, photoscan, picketpin, police van, protistan, psycho-man, puputan, quarry-man, quatorzain, raisin bran, rambotan, reeperbahn, registan, repairman, rokugan, rolling-pin, sacristan, safety-pin, sallyman, schlitterbahn, scintiscan, secret plan, seremban, serviceman, shandrydan, silverman, skinnyman, socketcan, socotran, soda can, soloman, solyman, spheniscan, spic-and-span, spick-and-span, stewing pan, stolypin, suanpan, superfan, superman, superscan, tajikstan, taliban, tallyman, taqman, tatarstan, tatrapan, teleman, terapin, tholepin, thoroughpin, tragopan, travel plan, trimaran, tryptofan, turbofan, turcoman, turkistan, turlupin, tweezerman, ultrafan, underman, underran, underscan, vectorman, villeurbanne, viviane, warming-pan, warming pan, weatherman, weatherscan, wong choong hann, wu-tang clan, yucatan, zahnradbahn, zapopan, zebra-man, zemlyane

4 syllables:
abraham-man, absurdistan, acaridan, adenoscan, afganistan, afghanis-tan, afghanistan, ahiravan, al-khayzuran, arabistan, assemblyman, atakapan, athapascan, attacapan, attention span, awarapan, balochistan, baluchistan, bank of japan, bashkortostan, benzofuran, bernie taupin, big businessman, bimaristan, carbofuran, catamaran, chaliapin, chipewyan, chippewyan, commission plan, dabigatran, derek chauvin, double saucepan, east pakistan, electric fan, eledoisin, ex-serviceman, flag of japan, format-fortran, geraniin, gorilla-man, gurren lagann, haricharan, illinoian, installment plan, jennifer pan, jimeoin, kabulistan, kafiristan, kalicharan, kazakistan, kirgisistan, kolaigaran, kuvera.in, londonistan, louisiane, madeline kahn, makabayan, manikuttan, manimaran, manitoulin, mazandaran, mcgranahan, moghulistan, mygov.in, names of japan, newspaperman, nitrofuran, nurseryman, o'callahan, ocallahan, ottakkomban, padmanabhan, panganiban, pashtunistan, passenger van, phospholamban, pichaikkaran, priscilla chan, radioman, regionalbahn, romanistan, salaryman, saurabh raj jain, sea of japan, sebastian stan, small businessman, stock purchase plan, survivorman, tabaristan, tadjikistan, tadzhikistan, tajikistan, teleostan, thiofuran, thysanuran, tokharistan, transocean, tunganistan, turkmenistan, tv newsman, uruapan, usbekistan, uzbekistan, vientiane, watering can, waziristan, west pakistan, xylophilan, yang junxuan, zabulistan

5 syllables:
aattanayagann, alluvial fan, american plan, artilleryman, border patrolman, catch me if you can, deewaanapan, delivery van, dibenzofuran, dinotefuran, erin kellyman, european plan, gerold of lausanne, gilgit-baltistan, heliotropin, infinity-man, karakalpakstan, minar-e-pakistan, paralititan, retirement plan, saraikistan, sverigetopplistan, talibanistan, uyghuristan

6 syllables:
architectural plan, capital of japan, capital of sudan, electric frying pan, emperor of japan, empire of japan, history of japan, india.gov.in, karakattakkaran, nishan-e-pakistan, prefectures of japan, religion in japan, surrender of japan, tetrahydrofuran, the lady in the van

7 syllables:
abominable snowman, capital of pakistan, cessna 208 caravan, demographics of japan, economy of japan, education in japan, list of cities in japan, list of islands of japan, occupation of japan, pornography in japan, president of pakistan, prime minister of japan, republic of the sudan, the new adventures of he-man

8 syllables:
capital of afghanistan, capital of tajikistan, capital of turkmenistan, economy of pakistan, employee stock ownership plan, history of afghanistan, imperial house of japan, list of chapters in the quran, modified american plan, mongol invasions of japan, polytetrahydrofuran, so i married the anti-fan

9 syllables:
tehrik-i-taliban pakistan

10 syllables:
covid-19 pandemic in japan