egalitarianism vs philosophy

egalitarianism and philosophy both are nouns.

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

As nouns, philosophy is a hypernym of egalitarianism; that is, philosophy 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
philosophy: a belief (or system of beliefs) accepted as authoritative by some group or school

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

egalitarianism (noun)	philosophy (noun)
the doctrine of the equality of mankind and the desirability of political and economic and social equality	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