pub vs saloon

pub and saloon both are nouns.

Word	Noun	Adjective	Verb	Adverb
pub	Yes	No	No	No
saloon	Yes	No	No	No

As nouns, pub and saloon are synonyms defined as:

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

Other synonyms of pub include gin mill, pothouse, public house, taphouse.

pub (noun)	saloon (noun)
tavern consisting of a building with a bar and public rooms; often provides light meals	a room or establishment where alcoholic drinks are served over a counter
	tavern consisting of a building with a bar and public rooms; often provides light meals
	a car that is closed and that has front and rear seats and two or four doors