repeal vs countermand

repeal and countermand both are nouns.

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

As verbs, repeal and countermand are synonyms defined as:

Other synonyms of repeal include annul, lift, overturn, rescind, reverse, revoke, vacate.

repeal (noun)	countermand (noun)
the act of abrogating; an official or legal cancellation	a contrary command cancelling or reversing a previous command

repeal (verb)	countermand (verb)
cancel officially	cancel officially