cancellation vs repeal

cancellation and repeal both are nouns.

Word	Noun	Adjective	Verb	Adverb
cancellation	Yes	No	No	No
repeal	Yes	No	Yes	No

As nouns, repeal is a hyponym of cancellation; that is, repeal is a word with a more specific, narrower meaning than cancellation:

Other hyponyms of cancellation include abrogation, annulment, write-off, attainder, civil death, recission, rescission.

cancellation (noun)	repeal (noun)
the act of cancelling; calling off some arrangement	the act of abrogating; an official or legal cancellation
the speech act of revoking or annulling or making void

cancellation (verb)	repeal (verb)
	cancel officially