recoil vs retract

recoil is a noun but retract is not a noun.

Word	Noun	Adjective	Verb	Adverb
recoil	Yes	No	Yes	No
retract	No	No	Yes	No

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

Other hyponyms of recoil include shrink back.

recoil (noun)	retract (noun)
a movement back from an impact
the backward jerk of a gun when it is fired

recoil (verb)	retract (verb)
spring back, as from a forceful thrust	formally reject or disavow a formerly held belief, usually under pressure
draw back, as with fear or pain	pull inward or towards a center
spring back; spring away from an impact	use a surgical instrument to hold open (the edges of a wound or an organ)
come back to the originator of an action with an undesired effect	pull away from a source of disgust or fear