pursue vs haunt

pursue is not a noun while haunt is a noun.

Word	Noun	Adjective	Verb	Adverb
pursue	No	No	Yes	No
haunt	Yes	No	Yes	No

As verbs, haunt is a hyponym of pursue; that is, haunt is a word with a more specific, narrower meaning than pursue:

Other hyponyms of pursue include stalk, chase, chase after, dog, give chase, go after, tag, tail, track, trail, stalk.

pursue (noun)	haunt (noun)
	a frequently visited place

pursue (verb)	haunt (verb)
go in search of or hunt for	haunt like a ghost; pursue
follow in or as if in pursuit	follow stealthily or recur constantly and spontaneously to
carry out or participate in an activity; be involved in	be a regular or frequent visitor to a certain place
carry further or advance