recoil vs pass off

recoil is a noun but pass off is not a noun.

Word	Noun	Adjective	Verb	Adverb
recoil	Yes	No	Yes	No
pass off	No	No	Yes	No

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

Other hypernyms of recoil include come about, fall out, go on, hap, happen, occur, pass, take place.

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

recoil (verb)	pass off (verb)
spring back, as from a forceful thrust	expel (gases or odors)
draw back, as with fear or pain	come to pass
spring back; spring away from an impact	disappear gradually
come back to the originator of an action with an undesired effect	disregard
	cause to be circulated and accepted in a false character or identity
	be accepted as something or somebody in a false character or identity