confine vs tie up

confine and tie up both are verbs.

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

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

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

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