feminism vs ism

feminism and ism both are nouns.

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

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

feminism: a doctrine that advocates equal rights for women
ism: a belief (or system of beliefs) accepted as authoritative by some group or school

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

feminism (noun)	ism (noun)
the movement aimed at equal rights for women	a belief (or system of beliefs) accepted as authoritative by some group or school
a doctrine that advocates equal rights for women