spread out vs muck

spread out is not a noun while muck is a noun.

Word	Noun	Adjective	Verb	Adverb
spread out	No	No	Yes	No
muck	Yes	No	Yes	No

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

Other hyponyms of spread out include manure, birdlime, lime, circumfuse, distribute.

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

spread out (verb)	muck (verb)
set out or stretch in a line, succession, or series	remove muck, clear away muck, as in a mine
spread out or open from a closed or folded state	soil with mud, muck, or mire
move outward	spread manure, as for fertilization
extend in one or more directions
move away from each other
turn outward
strew or distribute over an area