assort vs companion

assort is not a noun while companion is a noun.

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

As verbs, companion is a hyponym of assort; that is, companion is a word with a more specific, narrower meaning than assort:

Other hyponyms of assort include ally, date, go out, go steady, see, accompany, company, keep company.

assort (noun)	companion (noun)
	a friend who is frequently in the company of another
	one paid to accompany or assist or live with another
	a traveler who accompanies you

assort (verb)	companion (verb)
arrange or order by classes or categories	be a companion to somebody
keep company with; hang out with