faecal matter vs dung

faecal matter and dung both are nouns.

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

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

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

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

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