dirt vs grunge

dirt and grunge both are nouns.

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

As nouns, dirt and grunge are synonyms defined as:

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

dirt (noun)	grunge (noun)
disgraceful gossip about the private lives of other people	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
obscene terms for feces

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