filth vs dirt

filth and dirt both are nouns.

Word	Noun	Adjective	Verb	Adverb
filth	Yes	No	No	No
dirt	Yes	Yes	No	No

As nouns, filth and dirt are synonyms defined as:

Other synonyms of filth include grease, grime, grunge, soil, stain.

filth (noun)	dirt (noun)
an offensive or indecent word or phrase	disgraceful gossip about the private lives of other people
a state characterized by foul or disgusting dirt and refuse	anything regarded as making something unclean
anything regarded as making something unclean	the part of the earth's surface consisting of humus and disintegrated rock
any substance considered disgustingly foul or unpleasant	obscene terms for feces

filth (adjective)	dirt (adjective)
	(of roads) not leveled or drained; unsuitable for all year travel