renege vs revoke

renege and revoke both are nouns.

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

As nouns, renege and revoke are synonyms defined as:

As verbs, revoke is a hypernym of renege; that is, revoke is a word with a broader meaning than renege:

Other hypernyms of renege include annul, countermand, lift, overturn, repeal, rescind, reverse, vacate.

renege (noun)	revoke (noun)
the mistake of not following suit when able to do so	the mistake of not following suit when able to do so

renege (verb)	revoke (verb)
fail to fulfill a promise or obligation	cancel officially
	fail to follow suit when able and required to do so