dissent vs debate

dissent and debate both are nouns.

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

dissent (noun)	debate (noun)
the act of protesting; a public (often organized) manifestation of dissent	the formal presentation of a stated proposition and the opposition to it (usually followed by a vote)
(law) the difference of one judge's opinion from that of the majority	a discussion in which reasons are advanced for and against some proposition or proposal
a difference of opinion

dissent (verb)	debate (verb)
withhold assent	argue with one another
be of different opinions	discuss the pros and cons of an issue
express opposition through action or words	have an argument about something
	think about carefully; weigh