reformism vs school of thought

reformism and school of thought both are nouns.

Word	Noun	Adjective	Verb	Adverb
reformism	Yes	No	No	No
school of thought	Yes	No	No	No

As nouns, school of thought is a hypernym of reformism; that is, school of thought is a word with a broader meaning than reformism:

reformism: a doctrine of reform
school of thought: a belief (or system of beliefs) accepted as authoritative by some group or school

Other hypernyms of reformism include doctrine, ism, philosophical system, philosophy.

reformism (noun)	school of thought (noun)
a doctrine of reform	a belief (or system of beliefs) accepted as authoritative by some group or school