faeces vs dog turd

faeces and dog turd both are nouns.

Word	Noun	Adjective	Verb	Adverb
faeces	Yes	No	No	No
dog turd	Yes	No	No	No

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

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

faeces (noun)	dog turd (noun)
solid excretory product evacuated from the bowels	fecal droppings from a dog