rubbish vs detritus

rubbish and detritus both are nouns.

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

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

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

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

rubbish (verb)	detritus (verb)
attack strongly