foist vs insert

foist is not a noun while insert is a noun.

Word	Noun	Adjective	Verb	Adverb
foist	No	No	Yes	No
insert	Yes	No	Yes	No

As verbs, insert is a hypernym of foist; that is, insert is a word with a broader meaning than foist:

Other hypernyms of foist include enclose, inclose, introduce, put in, stick in.

foist (noun)	insert (noun)
	(film) a still picture that is introduced and that interrupts the action of a film
	(broadcasting) a local announcement inserted into a network program
	an artifact that is inserted or is to be inserted
	a folded section placed between the leaves of another publication

foist (verb)	insert (verb)
insert surreptitiously or without warrant	place, fit, or thrust (something) into another thing
to force onto another	insert casually
	put or introduce into something
	fit snugly into