freedom fighter vs reformist

freedom fighter and reformist both are nouns.

Word	Noun	Adjective	Verb	Adverb
freedom fighter	Yes	No	No	No
reformist	Yes	Yes	No	No

As nouns, reformist is a hypernym of freedom fighter; that is, reformist is a word with a broader meaning than freedom fighter:

freedom fighter: a person who takes part in an armed rebellion against the constituted authority (especially in the hope of improving conditions)
reformist: a disputant who advocates reform

Other hypernyms of freedom fighter include crusader, meliorist, reformer, social reformer, revolutionary, revolutionist, subversive, subverter.

freedom fighter (noun)	reformist (noun)
a person who takes part in an armed rebellion against the constituted authority (especially in the hope of improving conditions)	a disputant who advocates reform

freedom fighter (adjective)	reformist (adjective)
	favoring or promoting reform (often by government action)