gaming house vs gambling den

gaming house and gambling den both are nouns.

Word	Noun	Adjective	Verb	Adverb
gaming house	Yes	No	No	No
gambling den	Yes	No	No	No

As nouns, gaming house and gambling den are synonyms defined as:

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

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

gaming house (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)