bullshit vs shit

bullshit and shit both are nouns.

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

As nouns, bullshit and shit are synonyms defined as:

Other synonyms of bullshit include bull, crap, dogshit, horseshit, Irish bull.

bullshit (noun)	shit (noun)
Obscene word for unacceptable behavior	something of little value
	Obscene word for unacceptable behavior
	insulting terms of address for people who are stupid or irritating or ridiculous
	a coarse term for defecation
	a small worthless amount
	obscene terms for feces

bullshit (verb)	shit (verb)
speak insincerely or without regard for facts or truths	have a bowel movement
	give away information about somebody