shit vs poop

shit and poop both are nouns.

Word	Noun	Adjective	Verb	Adverb
shit	Yes	No	Yes	No
poop	Yes	No	No	No

As nouns, shit and poop are synonyms defined as:

Other synonyms of shit include crap, dirt, shite, turd.

shit (noun)	poop (noun)
something of little value	the rear part of a ship
Obscene word for unacceptable behavior	slang terms for inside information
insulting terms of address for people who are stupid or irritating or ridiculous	a stupid foolish person
a coarse term for defecation	obscene terms for feces
a small worthless amount
obscene terms for feces

shit (verb)	poop (verb)
have a bowel movement
give away information about somebody