say it: muhl-tee-KUHL-chur-uh-liz-uhm
multiculturalism is a noun meaning "the doctrine that several different cultures (rather than one national culture) can coexist peacefully and equitably in a single country". It carries one recorded sense.
the doctrine that several different cultures (rather than one national culture) can coexist peacefully and equitably in a single country
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for multiculturalism come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.