gambling den vs gaming house

gambling den and gaming house both are nouns.

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

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

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

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

gambling den (noun)	gaming house (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)