lock away vs confine

lock away and confine both are verbs.

Word	Noun	Adjective	Verb	Adverb
lock away	No	No	Yes	No
confine	No	No	Yes	No

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

lock away: place in a place where something cannot be removed or someone cannot escape
confine: prevent from leaving or from being removed

lock away (verb)	confine (verb)
place in a place where something cannot be removed or someone cannot escape	place limits on (extent or amount or access)
	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