protest vs contradict

protest is a noun but contradict is not a noun.

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

As verbs, contradict is a hypernym of protest; that is, contradict is a word with a broader meaning than protest:

Other hypernyms of protest include controvert, oppose.

protest (noun)	contradict (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

protest (verb)	contradict (verb)
utter words of protest	prove negative; show to be false
affirm or avow formally or solemnly	deny the truth of
express opposition through action or words	be resistant to
	be in contradiction with