oppose vs protest

oppose is not a noun while protest is a noun.

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

As verbs, protest is a hyponym of oppose; that is, protest is a word with a more specific, narrower meaning than oppose:

Other hyponyms of oppose include blackball, negative, veto, dissent, resist.

oppose (noun)	protest (noun)
	the act of protesting; a public (often organized) manifestation of dissent
	a formal and solemn declaration of objection
	the act of making a strong public expression of disagreement and disapproval

oppose (verb)	protest (verb)
be resistant to	utter words of protest
be against; express opposition to	affirm or avow formally or solemnly
set into opposition or rivalry	express opposition through action or words
fight against or resist strongly
act against or in opposition to
contrast with equal weight or force