plague vs swarm

plague and swarm both are nouns.

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

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

Other hypernyms of plague include cloud.

plague (noun)	swarm (noun)
an annoyance	a group of many things in the air or on the ground
any large scale calamity (especially when thought to be sent by God)	a moving crowd
a swarm of insects that attack plants
a serious (sometimes fatal) infection of rodents caused by Yersinia pestis and accidentally transmitted to humans by the bite of a flea that has bitten an infected animal
any epidemic disease with a high death rate

plague (verb)	swarm (verb)
annoy continually or chronically	move in large numbers
cause to suffer a blight	be teeming, be abuzz