1 syllable:
-phone, blown, boan, boann, boehne, boen, bohn, bohne, bone, bown, bowne, chone, clone, coan, cohn, cone, croan, crone, doan, doane, doanh, don't, drone, drone', flown, foehn, fone, goan, goen, groan, groen, grone, grown, hoehn, hoehne, hoen, hone, joan, joane, jone, kl-one, kloehn, known, koehn, koehne, koen, kohne, krohn, loan, lone, mbone, moan, moen, mon, mone, oanh, own, phone, plohn, prone, r-zone, rclone, rhone, roan, roane, roanne, roen, rone, schoen, schone, scone, sewn, shone, shown, sloan, sloane, slone, soane, sown, sowne, stone, strown, swown, thoen, thone, throne, thrown, tone, trone, yonne, zone

2 syllables:
aczone, aimone, airfone, aitchbone, algestone, anthrone, argoan, argonne, arm bone, arone, astone, athlone, atone, axstone, backbone, barbone, barebone, barone, barrone, bastogne, bayonne, bedstone, bemoan, beshone, besogne, best-known, bilestone, birdstone, birthstone, bizone, blackphone, blackstone, bladebone, bloodstone, bluestone, blue stone, blystone, bologne, bondstone, bouffon, boulogne, bourgogne, boyzone, bozon, breakstone, breastbone, bridgestone, brookstone, brownstone, buffon, buhrstone, burrstone, burstone, c-clown, cadrone, calf-bone, calfbone, calf bone, call loan, camstone, capone, capstone, carbone, cardphone, carone, cartone, catone, cell-phone, chalk-stone, chalkstone, chalkzone, chalone, charogne, cheekbone, chest tone, chinbone, chinlone, chockstone, cigogne, cirone, claystone, clingstone, clinkstone, co-own, cobstone, coloane, cologne, condone, copestone, cornstone, cotone, cross-stone, crotone, crowstone, croylstone, cubone, curbstone, cyclone, daidone, damone, darkstone, darkthrone, debone, demone, dethrone, dhrystone, dialtone, dibstone, dijon, diketone, diphone, disown, disthrone, doorstone, dordogne, downthrown, dragone, drakestone, dreadzone, dripstone, dropstone, dropzone, drop scone, drop zone, dry-stone, drystone, dumbphone, earphone, ebone, edgebone, end-blown, enstone, enthrone, evzone, eyestone, fairphone, farone, felstone, fieldstone, finestone, fionn, firestone, fir cone, fishbone, flagstone, flat bone, flesh-n-bone, flintstone, floatstone, flowstone, fly-blown, flyblown, folkestone, folkstone, footstone, foreshown, freefone, freestone, free zone, full-blown, full-grown, fullblown, gallstone, gamone, garone, gemstone, gladstone, glenstone, godstone, godzone, goldstone, goldtone, grapestone, grass-grown, grauzone, gravestone, graystone, greenbone, greenstone, greystone, greyzone, grindstone, gritstone, gunstone, hailstone, half-grown, half-tone, halftone, hambone, handblown, handphone, handsewn, headphone, headstone, head tone, hearthstone, heelbone, hellphone, heptone, high-blown, high-flown, hipbone, histone, hoarstone, home-grown, homegrown, hormone, hornstone, hurlbone, i-phone, inblown, ingrown, inkstone, instone, inthrone, intone, iphone, irone, ivrogne, jackstone, jadestone, jambone, jawbone, jeroen, jetstone, jewstone, johnstone, juglone, kalkoen, kerbstone, keystone, kingstone, klinkstone, kneebone, knockstone, kotone, ladrone, lapstone, latrone, leg bone, leone, lightstone, lightzone, limestone, limone, linphone, loadstone, lodestone, long bone, lung-grown, lupone, madrone, maidstone, maimone, malone, mamon, mamone, marlstone, marone, masone, mazon, mazone, mccone, mccrone, mcglone, mchone, mckone, mckown, mearstone, medstone, meerestone, melloan, meloen, mentone, merestone, miilkbone, milestone, miljoen, milk-bone, millstone, milone, mione, miss sloane, montrone, moonstone, moorstone, morone, moss-grown, mosstone, mudbone, mudstone, nalbone, neck bone, neurone, new-mown, nose cone, nutone, o-zone, ochone, ohlone, ohone, oilstone, one-one, outblown, outflown, outgone, outgrown, outshone, ozone, palone, paone, pavone, pay-phone, payphone, pearlstone, peastone, peptone, perone, picone, pilone, pin bone, pipestone, pirone, pitchstone, plasmon, pneumon, polmone, pologne, postpone, potstone, poundstone, prezone, prozone, pure tone, quern-stone, quernstone, qzone, ra.one, ragstone, rainone, ramon, ramone, rathbone, raton, rawbone, redbone, redstone, red joan, regrown, reloan, resown, rezone, rhinestone, rhymezone, rhyme zone, richstone, ridgebone, ringbone, risk-prone, roestone, round bone, rubstone, runestone, salone, sandstone, saone, satphone, scavone, scimone, scrubstone, scythestone, self-sown, serzone, shade-grown, shankbone, sharebone, sharon, shenstone, shiftphone, shinbone, shirone, short bone, sidebone, sidetone, silone, siltstone, simone, smartphone, snake-stone, snakestone, snowclone, soapstone, softphone, spadebone, spallone, splint bone, spumone, stallone, starstone, stepstone, stinkstone, storm cone, subzone, sulfone, sulphone, sunstone, swinestone, t-bone, t-zone, tail-bone, tailbone, tail bone, tbone, techmoan, test-flown, testone, textphone, thigh-bone, thighbone, thujone, tigtone, tilestone, time loan, time zone, tinstone, tirone, toadstone, tombstone, topstone, touch-tone, touchstone, treadstone, tripestone, trombone, truphone, turnstone, twelve-tone, two-tone, twotone, tyrone, unblown, unbone, unknown, unsewn, unshown, unsown, unthrone, valone, vanloan, vanstone, varone, veinstone, veldskoen, velskoen, viewphone, warzone, webphone, wedgestone, wedge bone, well-known, wellstone, well known, wheatstone, whetstone, whinstone, whirlbone, whitestone, whole tone, windblown, winstone, wishbone, woodstone, wrist bone, xanthone, yarchoan

3 syllables:
acetone, addlestone, aerophone, agapemone, all-in-one, allomone, allophone, amarone, amazone, ambisone, amerzone, amicone, ampyrone, anglophone, anklebone, ansafone, ansaphone, answerphone, antiphone, antozone, anzalone, aquatone, arctic zone, argemone, asarone, atherstone, audiphone, autochtone, autozone, avallone, bannerstone, barbitone, bariton, baritone, barytone, bellibone, better-known, better known, bishop's throne, bladder stone, blattnerphone, borazon, bourguignon, bourguignonne, bred-in-the-bone, bridget sloan, bristlecone, businessphone, buspirone, butyrone, cabezone, caboloan, cairngormstone, calcedon, calderon, caledon, cameraphone, cancion, cannon bone, canrenone, cardamone, carpal bone, catrambone, celestone, chalcedon, chaperon, chaperone, cherrystone, chicagoan, china stone, chordophone, ciccarone, cicerone, cipollone, cobblestone, collar-bone, collarbone, combat zone, coping stone, coppertone, copplestone, corazon, corleone, corner-stone, cornerstone, cortisone, coumarone, coverstone, crazy bone, cuajone, cumarone, cuttlebone, danger zone, daxophone, demand loan, demitone, dentiphone, diaclone, dial phone, diaphone, dictaphone, dipyrone, direct loan, disco-zone, disenthrone, dolostone, dopethrone, dronedarone, dropping zone, duotone, dyspeptone, eaglestone, ecclestone, ecotone, eddystone, electone, entryphone, epigone, epiphone, error-prone, eskimoan, ethion, euchrone, eupittone, eurozone, featherbone, featherstone, fetter bone, fiadone, filippone, flexatone, flutaphone, foreknown, francophone, freephone, frigid zone, frontal bone, fully-grown, fully grown, fundacion, fungizone, funktion-one, funnybone, funny bone, garramone, geophone, girdlestone, glycerone, gramaphone, grameenphone, gramophone, graphophone, gravel-stone, growth hormone, gtraystone, hackerone, halazone, hammerstone, haute-saone, heckelphone, hemitone, heptanone, herring-bone, herringbone, hold one's own, holystone, homophone, honeystone, hucklebone, hydrazone, hydrophone, hyperon, idahoan, ilosone, interphone, interzone, irestone, ironstone, isochrone, isotone, jaigaon, jellystone, jesusphone, jurdiccion, kairomone, kameroen, kampioen, khornerstone, kidney stone, knucklebone, lagerphone, launcherone, leading-tone, leading tone, lesser-known, let-alone, levinstone, leytonstone, lithophone, little-known, liver-grown, livingstone, living stone, loading zone, lusophone, macaron, maccarone, macedon, macrotone, magnatone, making known, mandlestone, mantion, margarone, marrowbone, mcelhone, megaphone, mellophone, membrane bone, mephedrone, metaphone, methadon, methadone, methodrone, microloan, microphone, microtone, mifepristone, monkeybone, monotone, morricone, moviefone, movietone, muscle tone, musimon, myristone, nabilone, naigaon, nasal bone, needlestone, norethindrone, novantrone, of her own, of his own, of one's own, of their own, of your own, oleone, one-and-one, one-for-one, one-to-one, on her own, on his own, on one's own, on their own, on your own, optophone, orthotone, osazone, overblown, overflown, overgrown, oversewn, overthrown, overtone, palmitone, panettone, pantalone, paragone, parlophone, passing tone, paving stone, peacock-throne, pebblestone, penistone, pentatone, pepitone, pepperstone, perlemoen, persephone, pettibone, phenazone, pheromone, photophone, pinephone, pipitone, plant hormone, podcastone, polar zone, polyphone, post malone, prasterone, precious stone, prohormone, promegestone, propeptone, pubic bone, pudding-stone, puddingstone, pudding stone, pumice stone, pyrophone, quarrystone, quarter-tone, quartertone, quinhydrone, reenthrone, reflectone, reggaeton, reinthrone, rent-to-own, rhythmone, ringlestone, rocking-stone, rollingstone, romanone, rotenone, rottenstone, rubblestone, saccharone, safety zone, salamone, salamstone, sauce-alone, saxaphone, saxofone, saxophone, scopitone, semiprone, semitone, sesquitone, sex hormone, shoulder bone, silicone, silverstone, silvertone, sinophone, six4one, sojabohne, sousaphone, speakerphone, spectrophone, sphygmophone, stand-alone, standalone, stepping-stone, steppingstone, stepping stone, sticks and stone, storytone, stumbling-stone, stylophone, suberone, superbone, systemone, tautochrone, techniphone, telephone, temperate zone, testimone, tetrazone, thermophone, thunderstone, tidal zone, timezone, tisiphone, toblerone, topophone, torrid zone, two-to-one, unbeknown, underbone, undergroan, undergrown, undertone, unforeknown, verifone, veritone, vibraphone, vicetone, vitaphone, vodafone, watch the throne, waterphone, waterstone, weatherstone, windows phone, winter's bone, wishing bone, wizardthrone, xylitone, xylophone, yellowstone, zacaton, zombie-loan

4 syllables:
accident-prone, aceyalone, actinophone, adrenalone, aldosterone, amazonstone, amfepramone, amphopeptone, androsterone, antarctic zone, anticyclone, antihormone, antipeptone, audioone, auxetophone, azaperone, bananaphone, bass-baritone, benzbromarone, bongaigaon, bouches-du-rhone, brachistochrone, brachystochrone, brody malone, cartilage bone, cefoperazone, cellular phone, central time zone, chiapparone, chlorzoxazone, cinnamon stone, clascoterone, climatic zone, concepcion, construccion, consumer loan, cynoscion, deferiprone, detectaphone, dimethisterone, dinoprostone, direccion, dr. stone, eastern time zone, eau-de-cologne, eau de cologne, ectohormone, edaravone, electrophone, emery stone, enoximone, entacapone, enterprise zone, ethisterone, executone, federacion, find my iphone, flowering stone, foundation-stone, foundation stone, french telephone, germanophone, hardwarezone, hemiditone, hemipeptone, hispanophone, hydraulophone, hydrocortone, hydrocyclone, hydromorphone, hymecromone, ideophone, idiophone, infeccion, isanemone, jackson rathbone, jena malone, john basilone, kaleidophone, kinetophone, lamellophone, littoral zone, lubiprostone, membranophone, mesocyclone, metacetone, metallophone, metapeptone, metaxalone, methaqualone, methasterone, methisazone, metolazone, mitoxantrone, mountain time zone, nabumetone, nefazodone, neurohormone, north frigid zone, north temperate zone, nutricion, of our own, osteophone, ostracion, otamatone, oxazolone, oxymorphone, palatine bone, parahormone, parapeptone, parathormone, pentamerone, personal loan, photographone, phytohormone, picturephone, playerunknown, polysulfone, progesterone, proteccion, pyrazolone, quinethazone, quirkyalone, radiophone, retinal cone, rosetta stone, rue anemone, sarrusophone, savings and loan, sea anemone, semiditone, sentinelone, shadow and bone, sonargaon, south frigid zone, south temperate zone, steroid hormone, subsemitone, sunny leone, superunknown, symballophone, telegraphone, temporal bone, testosterone, thyroid hormone, tropical zone, truncated cone, tympanic bone, upper jawbone, videophone, wood anemone

5 syllables:
adrenosterone, airtel-vodafone, alluvial cone, alpine anemone, amfebutamone, amiodarone, asparagus-stone, biophotophone, bromoacetone, cdmaone, chalon-sur-saone, chloroacetone, conversazi-one, corporacion, corticosterone, crystal microphone, cuneiform bone, cyclohexanone, deoxycortone, dial telephone, diaz-calderon, dydrogesterone, false rue anemone, fludrocortisone, fluoxymesterone, genus anemone, human growth hormone, hydrocortisone, innominate bone, internecion, metacarpal bone, metandienone, methandienone, mountain anemone, n.a.t.i.o.n., nitrofurazone, norethisterone, occipital bone, oxymesterone, pacific time zone, parietal bone, pentobarbitone, phenobarbitone, phenylacetone, phenylbutazone, philosopher's stone, pioglitazone, prairie anemone, prakash padukone, propyliodone, propyphenazone, pyramidal bone, quinalbarbitone, revolucion, robert w. malone, romancing the stone, rosiglitazone, semicarbazone, sierra leone, sulfinpyrazone, thioacetone, umbelliferone, vito corleone, wireless telephone

6 syllables:
acetylacetone, alicia silverstone, aminophenazone, amylobarbitone, archive of our own, canada anemone, cellular telephone, condenser microphone, deepika padukone, dihydrocodeinone, element of a cone, epiandrosterone, epitestosterone, geographical zone, methyltestosterone, n-ethylhexedrone, natascha mcelhone, nitromethaqualone, oxyphenbutazone, participation loan, radio-gramophone, radiotelephone, videotelephone

7 syllables:
aleutian subduction zone, capacitor microphone, chernobyl exclusion zone, dihydrotestosterone, dihydroxyacetone, fibrous dysplasia of bone, hydroxyprogesterone, medroxyprogesterone, sly and the family stone

8 syllables:
dehydroepiandrosterone, dehydroisoandrosterone, deoxycorticosterone, desoxycorticosterone, thenoyltrifluoroacetone

9 syllables:
capital of sierra leone, follicle stimulating hormone, korean demilitarized zone