waste product vs trash

waste product and trash both are nouns.

Word	Noun	Adjective	Verb	Adverb
waste product	Yes	No	No	No
trash	Yes	No	Yes	No

As nouns, trash is a hyponym of waste product; that is, trash is a word with a more specific, narrower meaning than waste product:

waste product (noun)	trash (noun)
any materials unused and rejected as worthless or unwanted	an amphetamine derivative (trade name Methedrine) used in the form of a crystalline hydrochloride; used as a stimulant to the nervous system and as an appetite suppressant
	nonsensical talk or writing
	worthless people
	worthless material that is to be disposed of

waste product (verb)	trash (verb)
	express a totally negative opinion of
	dispose of (something useless or old)