freethinking vs ism

freethinking and ism both are nouns.

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

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

freethinking: the doctrine that reason is the right basis for regulating conduct
ism: a belief (or system of beliefs) accepted as authoritative by some group or school

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

freethinking (noun)	ism (noun)
the doctrine that reason is the right basis for regulating conduct	a belief (or system of beliefs) accepted as authoritative by some group or school