renege on vs vacate

renege on and vacate both are verbs.

Word	Noun	Adjective	Verb	Adverb
renege on	No	No	Yes	No
vacate	No	No	Yes	No

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

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

renege on (verb)	vacate (verb)
fail to fulfill a promise or obligation	cancel officially
	leave behind empty; move out of
	leave (a job, post, or position) voluntarily