revoke vs overturn

revoke and overturn both are nouns.

Word	Noun	Adjective	Verb	Adverb
revoke	Yes	No	Yes	No
overturn	Yes	No	Yes	No

As verbs, revoke and overturn are synonyms defined as:

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

revoke (noun)	overturn (noun)
the mistake of not following suit when able to do so	the act of upsetting something
	an improbable and unexpected victory

revoke (verb)	overturn (verb)
cancel officially	change radically
fail to follow suit when able and required to do so	rule against
	cancel officially
	turn from an upright or normal position
	cause to overturn from an upright or normal position
	cause the downfall of; of rulers