snake pit vs hell

snake pit and hell both are nouns.

Word	Noun	Adjective	Verb	Adverb
snake pit	Yes	No	No	No
hell	Yes	No	No	No

As nouns, snake pit and hell are synonyms defined as:

Other synonyms of snake pit include hell on earth, hellhole, inferno, the pits.

snake pit (noun)	hell (noun)
pejorative terms for an insane asylum	noisy and unrestrained mischief
any place of pain and turmoil	a cause of difficulty and suffering
	any place of pain and turmoil