confine vs shackle

confine is not a noun while shackle is a noun.

Word	Noun	Adjective	Verb	Adverb
confine	No	No	Yes	No
shackle	Yes	No	Yes	No

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

confine: to close within bounds, or otherwise limit or deprive of free movement
shackle: restrain with fetters

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

confine (noun)	shackle (noun)
	a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner)
	a U-shaped bar; the open end can be passed through chain links and closed with a bar

confine (verb)	shackle (verb)
place limits on (extent or amount or access)	restrain with fetters
to close within bounds, or otherwise limit or deprive of free movement	bind the arms of
prevent from leaving or from being removed
deprive of freedom; take into confinement
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