faeces vs dung

faeces and dung both are nouns.

Word	Noun	Adjective	Verb	Adverb
faeces	Yes	No	No	No
dung	Yes	No	Yes	No

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

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

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

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