individualism vs belief

individualism and belief both are nouns.

Word	Noun	Adjective	Verb	Adverb
individualism	Yes	No	No	No
belief	Yes	No	No	No

As nouns, belief is a hypernym of individualism; that is, belief is a word with a broader meaning than individualism:

individualism: a belief in the importance of the individual and the virtue of self-reliance and personal independence
belief: any cognitive content held as true

individualism (noun)	belief (noun)
the quality of being individual	any cognitive content held as true
the doctrine that government should not interfere in commercial affairs	a vague idea in which some confidence is placed
a belief in the importance of the individual and the virtue of self-reliance and personal independence