faecal matter vs crap

faecal matter and crap both are nouns.

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

As nouns, crap is a hyponym of faecal matter; that is, crap 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, dirt, poop, shit, shite, turd, droppings, dung, muck, meconium, melaena, melena.

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

faecal matter (verb)	crap (verb)
	have a bowel movement