dissent vs contend

dissent is a noun but contend is not a noun.

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

dissent (noun)	contend (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

dissent (verb)	contend (verb)
withhold assent	to make the subject of dispute, contention, or litigation
be of different opinions	have an argument about something
express opposition through action or words	maintain or assert
	compete for something; engage in a contest; measure oneself against others
	be engaged in a fight; carry on a fight
	succeed in doing, achieving, or producing (something) with the limited or inadequate means available