multiculturalism vs philosophy

multiculturalism and philosophy both are nouns.

Word	Noun	Adjective	Verb	Adverb
multiculturalism	Yes	No	No	No
philosophy	Yes	No	No	No

As nouns, philosophy is a hypernym of multiculturalism; that is, philosophy is a word with a broader meaning than multiculturalism:

multiculturalism: the doctrine that several different cultures (rather than one national culture) can coexist peacefully and equitably in a single country
philosophy: a belief (or system of beliefs) accepted as authoritative by some group or school

Other hypernyms of multiculturalism include doctrine, ism, philosophical system, school of thought.

multiculturalism (noun)	philosophy (noun)
the doctrine that several different cultures (rather than one national culture) can coexist peacefully and equitably in a single country	the rational investigation of questions about existence and knowledge and ethics
	a belief (or system of beliefs) accepted as authoritative by some group or school
	any personal belief about how to live or how to deal with a situation