insert vs embed

insert is a noun but embed is not a noun.

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

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

insert (noun)	embed (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

insert (verb)	embed (verb)
place, fit, or thrust (something) into another thing	attach to, as a journalist to a military unit when reporting on a war
insert casually	fix or set securely or deeply
put or introduce into something
fit snugly into