filth vs waste product

filth and waste product both are nouns.

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

As nouns, waste product is a hypernym of filth; that is, waste product is a word with a broader meaning than filth:

Other hypernyms of filth include waste, waste material, waste matter.

filth (noun)	waste product (noun)
an offensive or indecent word or phrase	any materials unused and rejected as worthless or unwanted
a state characterized by foul or disgusting dirt and refuse
anything regarded as making something unclean
any substance considered disgustingly foul or unpleasant