pouch vs waist pack

pouch and waist pack both are nouns.

Word	Noun	Adjective	Verb	Adverb
pouch	Yes	No	Yes	No
waist pack	Yes	No	No	No

As nouns, waist pack is a hyponym of pouch; that is, waist pack is a word with a more specific, narrower meaning than pouch:

pouch: a small or medium size container for holding or carrying things
waist pack: a small pouch (usually with a zipper) that attaches to a belt and is worn around the waist

Other hyponyms of pouch include mail pouch, mailbag, pocket, sporran, tobacco pouch, belt bag.

pouch (noun)	waist pack (noun)
a small or medium size container for holding or carrying things	a small pouch (usually with a zipper) that attaches to a belt and is worn around the waist
(anatomy) saclike structure in any of various animals (as a marsupial or gopher or pelican)
an enclosed space

pouch (verb)	waist pack (verb)
swell or protrude outwards
put into a small bag
send by special mail that goes through diplomatic channels