affiliate vs accompany

affiliate is a noun but accompany is not a noun.

Word	Noun	Adjective	Verb	Adverb
affiliate	Yes	No	Yes	No
accompany	No	No	Yes	No

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

Other hyponyms of affiliate include ally, date, go out, go steady, see, companion, company, keep company.

affiliate (noun)	accompany (noun)
a subsidiary or subordinate organization that is affiliated with another organization
a subordinate or subsidiary associate; a person who is affiliated with another or with an organization

affiliate (verb)	accompany (verb)
join in an affiliation	perform an accompaniment to
keep company with; hang out with	go or travel along with
	be present or associated with an event or entity
	be a companion to somebody