vacation vs annulment

vacation and annulment both are nouns.

Word	Noun	Adjective	Verb	Adverb
vacation	Yes	No	Yes	No
annulment	Yes	No	No	No

As nouns, annulment is a hypernym of vacation; that is, annulment is a word with a broader meaning than vacation:

Other hypernyms of vacation include abrogation, repeal.

vacation (noun)	annulment (noun)
the act of making something legally void	(law) a formal termination (of a relationship or a judicial proceeding etc)
leisure time away from work devoted to rest or pleasure	the act of abrogating; an official or legal cancellation
	the state of being cancelled or annulled

vacation (verb)	annulment (verb)
spend or take a vacation