turd vs feces

turd and feces both are nouns.

Word	Noun	Adjective	Verb	Adverb
turd	Yes	No	No	No
feces	Yes	No	No	No

As nouns, feces is a hypernym of turd; that is, feces is a word with a broader meaning than turd:

Other hypernyms of turd include BM, dejection, faecal matter, faeces, fecal matter, ordure, stool.

turd (noun)	feces (noun)
obscene terms for feces	solid excretory product evacuated from the bowels