dung vs muck

dung and muck both are nouns.

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

As nouns, dung and muck are synonyms defined as:

Other synonyms of dung include droppings.

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

dung (verb)	muck (verb)
defecate; used of animals	remove muck, clear away muck, as in a mine
fertilize or dress with dung	soil with mud, muck, or mire
	spread manure, as for fertilization