companion vs consort

companion and consort both are nouns.

Word	Noun	Adjective	Verb	Adverb
companion	Yes	No	Yes	No
consort	Yes	No	Yes	No

As verbs, consort is a hypernym of companion; that is, consort is a word with a broader meaning than companion:

Other hypernyms of companion include affiliate, associate, assort.

companion (noun)	consort (noun)
a friend who is frequently in the company of another	a family of similar musical instrument playing together
one paid to accompany or assist or live with another	the husband or wife of a reigning monarch
a traveler who accompanies you

companion (verb)	consort (verb)
be a companion to somebody	keep company
	keep company with; hang out with
	go together