concession vs assent

concession and assent both are nouns.

Word	Noun	Adjective	Verb	Adverb
concession	Yes	No	No	No
assent	Yes	No	Yes	No

As nouns, assent is a hypernym of concession; that is, assent is a word with a broader meaning than concession:

Other hypernyms of concession include acquiescence.

concession (noun)	assent (noun)
a contract granting the right to operate a subsidiary business	agreement with a statement or proposal to do something
a point conceded or yielded
the act of conceding or yielding

concession (verb)	assent (verb)
	to agree or express agreement