swarm vs pour

swarm is a noun but pour is not a noun.

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

As verbs, swarm and pour are synonyms defined as:

Other synonyms of swarm include pullulate, stream, teem.

swarm (noun)	pour (noun)
a group of many things in the air or on the ground
a moving crowd

swarm (verb)	pour (verb)
move in large numbers	move in large numbers
be teeming, be abuzz	flow in a spurt
	cause to run
	pour out gradually, so as to separate out sediment
	supply in large amounts or quantities
	rain heavily