vacate vs annul

vacate and annul both are verbs.

Word	Noun	Adjective	Verb	Adverb
vacate	No	No	Yes	No
annul	No	No	Yes	No

As verbs, vacate and annul are synonyms defined as:

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

vacate (verb)	annul (verb)
cancel officially	cancel officially
leave behind empty; move out of	declare invalid
leave (a job, post, or position) voluntarily