freedom fighter vs subversive

freedom fighter and subversive both are nouns.

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

As nouns, subversive is a hypernym of freedom fighter; that is, subversive 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)
subversive: a radical supporter of political or social revolution

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

freedom fighter (noun)	subversive (noun)
a person who takes part in an armed rebellion against the constituted authority (especially in the hope of improving conditions)	a radical supporter of political or social revolution

freedom fighter (adjective)	subversive (adjective)
	in opposition to a civil authority or government