confine vs closet

confine is not a noun while closet is a noun.

Word	Noun	Adjective	Verb	Adverb
confine	No	No	Yes	No
closet	Yes	No	Yes	No

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

Other hyponyms of confine include cabin, coop in, coop up, lock, lock away, lock in, lock up, put away, shut away, shut up, lock in, seal in.

confine (noun)	closet (noun)
	a small private room for study or prayer
	a toilet in Britain
	a tall piece of furniture that provides storage space for clothes; has a door and rails or hooks for hanging clothes
	a small room (or recess) or cabinet used for storage space

confine (verb)	closet (verb)
place limits on (extent or amount or access)	confine to a small space, as for intensive work
to close within bounds, or otherwise limit or deprive of free movement
prevent from leaving or from being removed
deprive of freedom; take into confinement
close in