shackle vs handcuff

shackle and handcuff both are nouns.

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

As nouns, handcuff is a hyponym of shackle; that is, handcuff 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)
handcuff: 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, cuff, handlock, manacle, chains, irons.

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

Other hyponyms of shackle include cuff, manacle.

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

shackle (verb)	handcuff (verb)
restrain with fetters	confine or restrain with or as if with manacles or handcuffs
bind the arms of