diaper vs garment

diaper and garment both are nouns.

Word	Noun	Adjective	Verb	Adverb
diaper	Yes	No	No	No
garment	Yes	No	Yes	No

As nouns, garment is a hypernym of diaper; that is, garment is a word with a broader meaning than diaper:

diaper: garment consisting of a folded cloth drawn up between the legs and fastened at the waist; worn by infants to catch excrement
garment: an article of clothing

diaper (noun)	garment (noun)
garment consisting of a folded cloth drawn up between the legs and fastened at the waist; worn by infants to catch excrement	an article of clothing
a fabric (usually cotton or linen) with a distinctive woven pattern of small repeated figures

diaper (verb)	garment (verb)
	provide with clothes or put clothes on