pub vs gin mill

pub and gin mill both are nouns.

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

As nouns, pub and gin mill are synonyms defined as:

pub and gin mill: tavern consisting of a building with a bar and public rooms; often provides light meals

Other synonyms of pub include pothouse, public house, saloon, taphouse.

pub (noun)	gin mill (noun)
tavern consisting of a building with a bar and public rooms; often provides light meals	tavern consisting of a building with a bar and public rooms; often provides light meals