jacket vs apparel

jacket and apparel both are nouns.

Word	Noun	Adjective	Verb	Adverb
jacket	Yes	No	Yes	No
apparel	Yes	No	Yes	No

As verbs, apparel is a hypernym of jacket; that is, apparel is a word with a broader meaning than jacket:

Other hypernyms of jacket include clothe, dress, enclothe, fit out, garb, garment, habilitate, raiment, tog.

jacket (noun)	apparel (noun)
a short coat	clothing in general
an outer wrapping or casing
(dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth
the tough metal shell casing for certain kinds of ammunition
the outer skin of a potato

jacket (verb)	apparel (verb)
put a jacket on	provide with clothes or put clothes on
provide with a thermally non-conducting cover