contradict vs dissent

contradict is not a noun while dissent is a noun.

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

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

Other hypernyms of contradict include differ, disagree, take issue.

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

Other hyponyms of contradict include blackball, negative, veto, protest, resist.

contradict (noun)	dissent (noun)
	the act of protesting; a public (often organized) manifestation of dissent
	(law) the difference of one judge's opinion from that of the majority
	a difference of opinion

contradict (verb)	dissent (verb)
prove negative; show to be false	withhold assent
deny the truth of	be of different opinions
be resistant to	express opposition through action or words
be in contradiction with