matter vs muck

matter and muck both are nouns.

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

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

matter (noun)	muck (noun)
that which has mass and occupies space	any thick, viscous matter
(used with negation) having consequence	fecal matter of animals
some situation or event that is thought about
a vaguely specified concern
a problem
written works (especially in books or magazines)

matter (verb)	muck (verb)
have weight; have import, carry weight	remove muck, clear away muck, as in a mine
	soil with mud, muck, or mire
	spread manure, as for fertilization