elitism vs ideology

elitism and ideology both are nouns.

Word	Noun	Adjective	Verb	Adverb
elitism	Yes	No	No	No
ideology	Yes	No	No	No

As nouns, ideology is a hypernym of elitism; that is, ideology is a word with a broader meaning than elitism:

elitism: the attitude that society should be governed by an elite group of individuals
ideology: an orientation that characterizes the thinking of a group or nation

Other hypernyms of elitism include political orientation, political theory.

elitism (noun)	ideology (noun)
the attitude that society should be governed by an elite group of individuals	an orientation that characterizes the thinking of a group or nation
	imaginary or visionary theorization