Budism, Judism, any religion would end in ism.. just go to google and look up... Words that end in ism.
BUDDISM
nationalism
Hinduism
cubeism, communism,prism
activismaphorismatheismbotulismcannibalismchrismdeismcriticismdualismegotismenthusiasmeroticismeuphemismfatalismfavoritismfeminismholismidealismindividualismformalismfundamentalismjournalismlegalismlyricismmechanismmorphismmysticismnepotismnarcissismoptimismorganismpatriotismperfectionismpessimismpluralismmesmerismpluralismpragmatismprismracismradicalismrealismseparatismsexismskepticismsymbolismterrorismtheismtotalitarianismuniversalismventriloquismvegetarianismvolunteerismwitticism
racism atheism extremism abolitionism abstractionism
ISM Racing ended in 1999.
That very long word is a noun, as are almost all English words that end in the letters "ism".
altruismautismbotulismcapitalismcommercialismconservatismcreationismcriticismdualismempiricismeuphemismevangelismexorcismfanaticismfatalismfundamentalismhedonismindividualismjournalismlegalismmaterialismmechanismmonotheismmysticismnationalismnepotismoptimismpatriotismpessimismprofessionalismsensationalismsymbolismterrorismvandalism
prism?
plagiarism