1 syllable:
ann's, anne's, annes, ban's, banns, bans, branz, caen's, can's, cannes, cans, chan's, clans, crans, dan's, danz, fan's, fans, fans', flans, frans, franz, franze, fsanz, gans, ganz, ganze, glans, glanz, grans, han's, hands, hannes, hanns, hans, jan's, jannes, jans, janz, kanz, klan's, klans, krans, kranz, lanz, lanze, man's, mann's, mannes, manns, mans, manz, nan's, pan's, pans, pflanze, plan's, plans, plans', rans, ranz, sannes, sans, sanz, scans, schanze, span's, spans, spanz, stan's, stans, stanze, tans, trans, tranz, vannes, vans, vtrans, xanes, ben's, bens, benz-, brens, chen's, cleanse, dens, denz, ennes, enns, enz, flens, frenz, friend's, friends, friends', gennes, gens, genz, glenn's, glenns, glens, grenz, grenze, hen's, hennes, hens, henze, jenn's, jens, ken's, krenz, lens, lenz, men's, mens, menz, menze, n's, n.'s, n.s, n.s.w, ouens, pen's, penh's, penn's, penns, pens, pens', rennes, rens, renz, sens, spends, stenz, ten's, tens, thegns, trends, wednes, wenz, when's, whennes, whens, wrens, yen's, zens, zenz

2 syllables:
afghans, alcan's, all-trans, bedpans, bilanz, byzanz, c-span's, caftans, caltrans, cancans, cezanne's, chavannes, chimpanze, deadpans, dextrans, diane's, dishpans, divans, dustpans, galanz, goodman's, greenspan's, humanz, inspans, intrans, iran's, itrans, japan's, japans, joannes, kaftans, lianes, lifespans, lipans, mccann's, meehans, mfans, outspans, pecans, rattans, retrans, roseanne's, rosecrans, saucepans, sedans, stockman's, sub-clans, substanz, sudan's, suntans, sustrans, taipans, tarzan's, tympans, vacanze, wingspans, (parens, )parens, ardennes, boyfriends, bullpens, cheyenne's, cheyennes, contends, crescens, crown lens, extenze, firenze, florenz, frequenz, fulgens, impennes, ingens, marennes, parens, playpens, potenz, suresnes, tendenz, urgen's, zoom lens

3 syllables:
also-rans, bantustans, bruno ganz, businessman's, businessmans, callahan's, caravans, castellans, counterplans, diskrepanz, eurovans, gamelans, intertrans, kazakhstan's, kosovans, lumberman's, minivans, pakistan's, prestonpans, protistans, rosenkrans, sacristans, simutrans, super-cannes, taliban's, talibans, tragopans, )end-parens, biogen's, c. n. n.'s, c. n. n.s, closeup lens, cnn's, compound lens, concave lens, contact lens, convex lens, deferens, differenz, erkelenz, existenz, gentlemen's, genus lens, google lens, konferenz, kongruenz, konsequenz, longipennes, louvre-lens, madeleines, portrait lens, semilens, squamipennes, synergen's, uniden's

4 syllables:
acaridans, afghanistan's, afghanistans, mohammedans, tajikistan's, (begin-parens, camera lens, comediennes, converging lens, crystalline lens, diverging lens, efavirenz, electron lens, intelligenz, optical lens, parisiennes, tragediennes, valenciennes

5 syllables:
pressekonferenz, telephoto lens

6 syllables:
acanthocephalans, list of hindi film clans, intraocular lens

1 syllable:
stems, dams, lambs, grams, thames, jams, gangs, gramm's, hangs, sam's, scams, m.'s

2 syllables:
birth pangs, exams

3 syllables:
i. b. m.'s