oppose vs fight

oppose is not a noun while fight is a noun.

Word	Noun	Adjective	Verb	Adverb
oppose	No	No	Yes	No
fight	Yes	No	Yes	No

As verbs, oppose and fight are synonyms defined as:

Other synonyms of oppose include defend, fight back, fight down.

As verbs, fight is a hypernym of oppose; that is, fight is a word with a broader meaning than oppose:

Other hypernyms of oppose include contend, struggle.

oppose (noun)	fight (noun)
	a hostile meeting of opposing military forces in the course of a war
	the act of fighting; any contest or struggle
	a boxing or wrestling match
	an aggressive willingness to compete
	an intense verbal dispute

oppose (verb)	fight (verb)
be resistant to	be engaged in a fight; carry on a fight
be against; express opposition to	fight against or resist strongly
set into opposition or rivalry	make a strenuous or labored effort
fight against or resist strongly	exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for
act against or in opposition to
contrast with equal weight or force