tie up vs confine

tie up and confine both are verbs.

Word	Noun	Adjective	Verb	Adverb
tie up	No	No	Yes	No
confine	No	No	Yes	No

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

tie up: secure with or as if with ropes
confine: to close within bounds, or otherwise limit or deprive of free movement

Other hypernyms of tie up include constrain, hold, restrain.

tie up (verb)	confine (verb)
secure with or as if with ropes	place limits on (extent or amount or access)
finish the last row	to close within bounds, or otherwise limit or deprive of free movement
restrain from moving or operating normally	prevent from leaving or from being removed
secure in or as if in a berth or dock	deprive of freedom; take into confinement
invest so as to make unavailable for other purposes	close in