crowd vs crush

crowd and crush both are nouns.

Word	Noun	Adjective	Verb	Adverb
crowd	Yes	No	Yes	No
crush	Yes	No	Yes	No

As nouns, crush is a hyponym of crowd; that is, crush is a word with a more specific, narrower meaning than crowd:

Other hyponyms of crowd include army, jam, press, drove, horde, swarm, huddle, mob, rabble, rout, phalanx, flock, troop.

crowd (noun)	crush (noun)
a large number of things or people considered together	the act of crushing
an informal body of friends	temporary love of an adolescent
	a dense crowd of people
	leather that has had its grain pattern accentuated

crowd (verb)	crush (verb)
to gather together in large numbers	break into small pieces
cause to herd, drive, or crowd together	become injured, broken, or distorted by pressure
approach a certain age or speed	come out better in a competition, race, or conflict
fill or occupy to the point of overflowing	make ineffective
	to compress with violence, out of natural shape or condition
	crush or bruise
	humiliate or depress completely
	come down on or keep down by unjust use of one's authority