trash vs detritus

trash and detritus both are nouns.

Word	Noun	Adjective	Verb	Adverb
trash	Yes	No	Yes	No
detritus	Yes	No	No	No

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

Other hyponyms of trash include scrap metal, debris, dust, junk, rubble, litter.

trash (noun)	detritus (noun)
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	the remains of something that has been destroyed or broken up
nonsensical talk or writing	loose material (stone fragments and silt etc) that is worn away from rocks
worthless people
worthless material that is to be disposed of

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