egalitarianism vs ism

egalitarianism and ism both are nouns.

Word	Noun	Adjective	Verb	Adverb
egalitarianism	Yes	No	No	No
ism	Yes	No	No	No

As nouns, ism is a hypernym of egalitarianism; that is, ism is a word with a broader meaning than egalitarianism:

egalitarianism: the doctrine of the equality of mankind and the desirability of political and economic and social equality
ism: a belief (or system of beliefs) accepted as authoritative by some group or school

Other hypernyms of egalitarianism include doctrine, philosophical system, philosophy, school of thought.

egalitarianism (noun)	ism (noun)
the doctrine of the equality of mankind and the desirability of political and economic and social equality	a belief (or system of beliefs) accepted as authoritative by some group or school