feces vs crap

feces and crap both are nouns.

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

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

feces (noun)	crap (noun)
solid excretory product evacuated from the bowels	Obscene word for unacceptable behavior
	obscene terms for feces

feces (verb)	crap (verb)
	have a bowel movement