eject vs bounce

eject is not a noun while bounce is a noun.

Word	Noun	Adjective	Verb	Adverb
eject	No	No	Yes	No
bounce	Yes	No	Yes	No

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

Other hyponyms of eject include evict, force out, evict, show the door, exorcise, exorcize.

eject (noun)	bounce (noun)
	a light, self-propelled movement upwards or forwards
	the quality of a substance that is able to rebound
	rebounding from an impact (or series of impacts)

eject (verb)	bounce (verb)
eliminate (a substance)	eject from the premises
cause to come out in a squirt	hit something so that it bounces
put out or expel from a place	spring back; spring away from an impact
leave an aircraft rapidly, using an ejection seat or capsule	leap suddenly
	move up and down repeatedly
	come back after being refused
	refuse to accept and send back