enclose vs insert

enclose is not a noun while insert is a noun.

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

As verbs, enclose and insert are synonyms defined as:

enclose and insert: place, fit, or thrust (something) into another thing

Other synonyms of enclose include inclose, introduce, put in, stick in.

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

enclose (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

enclose (verb)	insert (verb)
place, fit, or thrust (something) into another thing	place, fit, or thrust (something) into another thing
surround completely	insert casually
enclose or enfold completely with or as if with a covering	put or introduce into something
close in	fit snugly into