gambling den vs gambling house

gambling den and gambling house both are nouns.

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

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

gambling den and gambling 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, gaming house.

gambling den (noun)	gambling 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)