shackle vs cuff

shackle and cuff both are nouns.

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

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

shackle: a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner)
cuff: shackle that consists of a metal loop that can be locked around the wrist; usually used in pairs

Other hyponyms of shackle include ball and chain, fetter, hobble, handcuff, handlock, manacle, chains, irons.

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

Other hyponyms of shackle include handcuff, manacle.

shackle (noun)	cuff (noun)
a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner)	the lap consisting of a turned-back hem encircling the end of the sleeve or leg
a U-shaped bar; the open end can be passed through chain links and closed with a bar	shackle that consists of a metal loop that can be locked around the wrist; usually used in pairs

shackle (verb)	cuff (verb)
restrain with fetters	hit with the hand
bind the arms of	confine or restrain with or as if with manacles or handcuffs
	to get involved in a relationship with another person