confine vs tie down

confine and tie down both are verbs.

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

As verbs, tie down is a hyponym of confine; that is, tie down 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 down: secure with or as if with ropes

Other hyponyms of confine include bind, tie up, truss, fetter, shackle, enchain, pinion, shackle, impound, pound, pound, pound up, fold, pen up, ground.

confine (verb)	tie down (verb)
place limits on (extent or amount or access)	restrain from independence by an obligation
to close within bounds, or otherwise limit or deprive of free movement	secure with or as if with ropes
prevent from leaving or from being removed
deprive of freedom; take into confinement
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