rot vs crap

rot and crap both are nouns.

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

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

Other hyponyms of rot include bull, bullshit, dogshit, horseshit, Irish bull, shit.

rot (noun)	crap (noun)
unacceptable behavior (especially ludicrously false statements)	Obscene word for unacceptable behavior
(biology) the process of decay caused by bacterial or fungal action	obscene terms for feces
a state of decay usually accompanied by an offensive odor

rot (verb)	crap (verb)
become physically weaker	have a bowel movement
break down