fecal matter vs dung

fecal matter and dung both are nouns.

Word	Noun	Adjective	Verb	Adverb
fecal matter	Yes	No	No	No
dung	Yes	No	Yes	No

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

Other hyponyms of fecal matter include dog do, dog shit, dog turd, doggy do, crap, dirt, poop, shit, shite, turd, droppings, muck, meconium, melaena, melena.

fecal matter (noun)	dung (noun)
solid excretory product evacuated from the bowels	fecal matter of animals

fecal matter (verb)	dung (verb)
	defecate; used of animals
	fertilize or dress with dung