clash vs dissent

clash and dissent both are nouns.

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

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

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

clash (noun)	dissent (noun)
a minor short-term fight	the act of protesting; a public (often organized) manifestation of dissent
a loud resonant repeating noise	(law) the difference of one judge's opinion from that of the majority
a state of conflict between persons	a difference of opinion
a state of conflict between colors

clash (verb)	dissent (verb)
disagree violently	withhold assent
crash together with violent impact	be of different opinions
be incompatible; be or come into conflict	express opposition through action or words