1 syllable:
-zoon, beaune, boon, boone, broon, broun, bruen, brune, bruun, buhne, choon, clune, coon, coone, croon, doone, doune, dune, gewoon, goon, gruen, grune, heun, hewn, hoon, joon, june, keune, khuen, koon, koone, kroon, kuehn, kuehne, kuhn, loon, mhoon, moone, noon, noone, pl-01, poon, prune, rd-701, roone, rune, schoon, scoon, shewn, shoen, shoon, soon, soune, spoon, strewn, suen, swoon, thune, toon, toone, troon, tune, yoon

2 syllables:
11001001, aboon, ajloun, antoon, antun, aoun, artoon, astun, aswoon, attune, aucune, babboon, baboon, badoon, balloon, baloon, banoun, barloon, barun, barzun, bassoon, batoon, batroun, bedoon, bestrewn, bethune, bookboon, bosthoon, bradoon, bridoon, buffoon, c-301, cacoon, cahoon, calhoon, calhoun, cancun, cantoon, cardoon, cartoon, ceroon, co-une, coccoon, cocoon, cohoon, cohune, commune, comune, coroun, corroon, crampoon, cva-01, dahoon, dekroon, dioon, disjune, doubloon, dunoon, duntroon, eftsoon, empugn, falcoon, festoon, fine-tune, floroon, fullmoon, gaboon, gadroon, galloon, gambroon, gipoun, godroon, gombroon, gossoon, grinspoon, hachiun, half-moon, hamdoon, hand-hewn, haroon, haroun, harpoon, harroun, harun, heart-spoon, heroon, high noon, hsu-001, huntoon, ilkoon, immune, impoon, impugn, impune, imune, intune, jargoon, jejune, judoon, kanoon, karoun, karun, katun, khatun, ki-moon, kokoon, korun, kowloon, kytoon, laayoune, lacune, laffoon, lagoon, lagune, lampoon, lamune, lardoon, latoun, lee je-hoon, liqun, lms-901, lovespoon, macoun, madjoun, magoon, majnoon, majoun, maroon, maroun, marroon, mattoon, matzoon, mcclune, mccuen, mccune, mckune, meroon, methuen, mid-june, mifune, mithoon, mohun, monsoon, muldoon, mxmtoon, ogoun, oppugn, pantun, parun, pashtoon, patroon, persoon, perun, petune, platoon, poltroon, pontoon, powtoon, premune, puccoon, quelquun, quintroon, raccoon, racoon, ramoon, ramune, rancune, rangoon, ratoon, rattoon, raunsoun, reprune, repugn, reune, rockoon, rough-hewn, roughhewn, rowoon, safemoon, saloon, samoon, sand dune, sashoon, sassoon, scotstoun, seldshewn, seroon, shagroon, shalloon, shamoon, shimbun, simoon, siogoon, soupspoon, soup spoon, spacetoon, spadroon, spitoon, spittoon, splatoon, spontoon, sung hoon, t-spoon, tampoon, tappoon, tarun, teaspoon, terhune, testoon, tetroon, too soon, torun, tsukune, tsurune, tuffoon, twelve noon, tycoon, tyfoon, type-moon, typhoon, undun, unhewn, varun, verboon, vodoun, walloon, webtoon, wyntoon, xiaoyun, yeppoon, zagtoon, zeitoun, zf2001

3 syllables:
01011001, actimmune, afternoon, ak-101, ambermoon, antidune, apolune, atakebune, auto-tune, autotune, babymoon, barracoon, basyoun, bigaroon, black lagoon, blatteroon, brigadoon, burnistoun, cameroon, cameroun, carrie coon, chefchaouen, chemiloon, choi tae-joon, ciclatoun, cytauxzoon, cytozoon, daniel boone, deltarune, demi-lune, demilune, dennistoun, dessertspoon, dessert spoon, disharoon, ducatoon, ducommun, ectozoon, entozoon, eozoon, epiploon, epizoon, espantoon, excommune, exomoon, facetune, familymoon, finetune, foredune, forenoon, frigatoon, gordonstoun, granfalloon, greasy spoon, honeymoon, hydrozoon, ju ji-hoon, kana-boon, kantokuen, kim go-eun, kite balloon, kunekune, lahmacun, laocoon, macaroon, masamune, mcaloon, medimmune, megan boone, menehune, metazoon, microzoon, musketoon, nyctibune, octaroon, ohakune, oil tycoon, olokun, opportun, opportune, or-201, oversoon, pantaloon, patacoon, perilune, phytozoon, picaroon, picayune, pickaroon, plenilune, polyzoon, protozoon, ptychozoon, pulpatoon, quarteroon, rapamune, redballoon, rigadoon, ryan dunn, sailormoon, saskatoon, scandaroon, schmigadoon, sekhukhune, semilune, semisoun, septemtrioun, sh2-101, silver spoon, sleep-at-noon, spermatoon, sporozoon, ss501, stabyhoun, steven yeun, sts-101, sugar spoon, supermoon, tablespoon, telefoon, teletoon, tenoroon, testu01, timimoun, tuyuhun, ur-100n, urbanspoon, vingt-et-un, viramune, viromune, vla2001, weatherspoon, witherspoon, wizard101, wotherspoon, xm301, year0001, yesternoon, zis-101

4 syllables:
actinozoon, am-2201, antimonsoon, as-201, barrage balloon, billiard saloon, chekelatoun, children of dune, common raccoon, contrabassoon, dermatozoon, dishkiyaoon, dominique dunne, double bassoon, frank herbert's dune, full-of-the-moon, go2damoon, good afternoon, haematozoon, hematozoon, huevocartoon, i.i.m.u.n., inopportun, inopportune, intercommune, john c. calhoun, karbassioun, malacatune, malacotoon, melicotoon, melocotoon, midafternoon, mpu-401, muttahidoon, mvc-cov1901, mystery 101, park seo-joon, pilot balloon, pirate101, reimportune, sausage balloon, sawdust saloon, signature tune, spermatozoon, strong girl bong-soon, taipei 101, tapas-bh-201, trial balloon, tuxedomoon, utsuro-bune, vaz-2101, vfa-101, vinegaroon, vinegarroon, zoey 101

5 syllables:
al-muhajiroun, al-munafiqun, cicada 3301, eperythrozoon, iso 8601, leucocytozoon, st3000dm001, trinitrotoluene, vcm-01

6 syllables:
animated cartoon, encephalitozoon, eurofighter typhoon, god emperor of dune

7 syllables:
capital of cameroon

9 syllables:
meteorological balloon