swarm vs crowd

swarm and crowd both are nouns.

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

As nouns, crowd is a hypernym of swarm; that is, crowd is a word with a broader meaning than swarm:

As verbs, crowd is a hypernym of swarm; that is, crowd is a word with a broader meaning than swarm:

Other hypernyms of swarm include crowd together.

swarm (noun)	crowd (noun)
a group of many things in the air or on the ground	a large number of things or people considered together
a moving crowd	an informal body of friends

swarm (verb)	crowd (verb)
move in large numbers	to gather together in large numbers
be teeming, be abuzz	cause to herd, drive, or crowd together
	approach a certain age or speed
	fill or occupy to the point of overflowing