2 syllables:
isms, prisms

3 syllables:
baptisms, grecisms, sophisms, yogiisms

4 syllables:
aneurisms, anglicisms, aphorisms, asterisms, barbarisms, briticisms, britishisms, catechisms, communism's, communisms, criticisms, cynicisms, dandyisms, despotisms, dualisms, dysphemisms, egotisms, embolisms, euphemisms, euphuisms, exorcisms, formalisms, gallicisms, germanisms, hypnotism's, journalism's, judaism's, latinisms, legalisms, liberalism's, localisms, mannerisms, mechanisms, methodisms, mysticisms, organism's, organisms, plagiarisms, putinisms, ruralisms, solecisms, specialisms, spoonerisms, syllogisms, symbolisms, syncretisms, traumatisms, verbalisms, vocalisms, vulgarisms, witticisms

5 syllables:
africanisms, anachronisms, animalisms, antagonisms, australianisms, automatisms, capitalism's, conservatisms, fanaticisms, hypocorisms, indianisms, initialisms, malapropisms, metabolisms, mutualisms, neologisms, parallelisms, protologisms, provincialisms, puritanisms, radicalisms, surrealism's, surrealisms

6 syllables:
americanisms, canadianisms, colloquialisms, fundamentalisms, largest organisms, microorganisms, servomechanisms, superorganisms

7 syllables:
photoperiodisms

2 syllables:
listens, missions, prisons, rhythms, visions

3 syllables:
provisions, conditions, positions, munitions, physicians, admissions, ambitions, collisions, commission's, commissions, decisions, divisions, edition's, editions, emissions, musicians, petitions, revisions, suspicions, technicians, traditions, transmissions

4 syllables:
acquisitions, admonitions, coalitions, competitions, definitions, depositions, noise conditions, politicians, ski conditions

5 syllables:
weather conditions

8 syllables:
thermosetting compositions

10 syllables:
meteorological conditions