confine vs keep back

confine and keep back both are verbs.

Word	Noun	Adjective	Verb	Adverb
confine	No	No	Yes	No
keep back	No	No	Yes	No

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

Other hypernyms of confine include hold back, keep, restrain.

confine (verb)	keep back (verb)
place limits on (extent or amount or access)	prevent the action or expression of
to close within bounds, or otherwise limit or deprive of free movement	hold back; refuse to hand over or share
prevent from leaving or from being removed	secure and keep for possible future use or application
deprive of freedom; take into confinement
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