gin mill vs tavern

gin mill and tavern both are nouns.

Word	Noun	Adjective	Verb	Adverb
gin mill	Yes	No	No	No
tavern	Yes	No	No	No

As nouns, tavern is a hypernym of gin mill; that is, tavern is a word with a broader meaning than gin mill:

gin mill: tavern consisting of a building with a bar and public rooms; often provides light meals
tavern: a building with a bar that is licensed to sell alcoholic drinks

Other hypernyms of gin mill include tap house.

gin mill (noun)	tavern (noun)
tavern consisting of a building with a bar and public rooms; often provides light meals	a building with a bar that is licensed to sell alcoholic drinks