hellhole vs the pits

hellhole and the pits both are nouns.

Word	Noun	Adjective	Verb	Adverb
hellhole	Yes	No	No	No
the pits	Yes	No	No	No

As nouns, hellhole and the pits are synonyms defined as:

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

hellhole (noun)	the pits (noun)
any place of pain and turmoil	any place of pain and turmoil