impound vs confine

impound and confine both are verbs.

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

As verbs, confine is a hypernym of impound; that is, confine is a word with a broader meaning than impound:

impound: place or shut up in a pound
confine: to close within bounds, or otherwise limit or deprive of free movement

Other hypernyms of impound include constrain, hold, restrain.

impound (verb)	confine (verb)
place or shut up in a pound	place limits on (extent or amount or access)
take temporary possession of as a security, by legal authority	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