excretion vs muck

excretion and muck both are nouns.

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

excretion (noun)	muck (noun)
the bodily process of discharging waste matter	any thick, viscous matter
waste matter (as urine or sweat but especially feces) discharged from the body	fecal matter of animals

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