kick back vs recoil

kick back is not a noun while recoil is a noun.

Word	Noun	Adjective	Verb	Adverb
kick back	No	No	Yes	No
recoil	Yes	No	Yes	No

As verbs, kick back and recoil are synonyms defined as:

Other synonyms of kick back include kick.

As verbs, recoil is a hypernym of kick back; that is, recoil is a word with a broader meaning than kick back:

Other hypernyms of kick back include bounce, bound, rebound, resile, reverberate, ricochet, spring, take a hop.

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

kick back (verb)	recoil (verb)
spring back, as from a forceful thrust	spring back, as from a forceful thrust
pay a kickback; make an illegal payment	draw back, as with fear or pain
	spring back; spring away from an impact
	come back to the originator of an action with an undesired effect