gambling hell vs gambling den

gambling hell and gambling den both are nouns.

Word	Noun	Adjective	Verb	Adverb
gambling hell	Yes	No	No	No
gambling den	Yes	No	No	No

As nouns, gambling hell and gambling den are synonyms defined as:

gambling hell and gambling den: a public building in which a variety of games of chance can be played (operated as a business)

Other synonyms of gambling hell include gambling house, gaming house.

gambling hell (noun)	gambling den (noun)
a public building in which a variety of games of chance can be played (operated as a business)	a public building in which a variety of games of chance can be played (operated as a business)