dirty vs muck

dirty is not a noun while muck is a noun.

Word	Noun	Adjective	Verb	Adverb
dirty	No	Yes	Yes	No
muck	Yes	No	Yes	No

As verbs, muck is a hyponym of dirty; that is, muck is a word with a more specific, narrower meaning than dirty:

Other hyponyms of dirty include foul, contaminate, foul, pollute, smear, slime, muddy, muddy up, splash, mire, muck up, mud, crock, blemish, spot.

dirty (noun)	muck (noun)
	any thick, viscous matter
	fecal matter of animals

dirty (adjective)	muck (adjective)
soiled or likely to soil with dirt or grime
(of behavior or especially language) characterized by obscenity or indecency
spreading pollution or contamination; especially radioactive contamination
unethical or dishonest
expressing or revealing hostility or dislike
obtained illegally or by improper means
(of a manuscript) defaced with changes
(of color) discolored by impurities; not bright and clear
vile; despicable
contaminated with infecting organisms
unpleasantly stormy
violating accepted standards or rules

dirty (verb)	muck (verb)
make soiled, filthy, or dirty	remove muck, clear away muck, as in a mine
	soil with mud, muck, or mire
	spread manure, as for fertilization