tavern vs saloon

tavern and saloon both are nouns.

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

As nouns, saloon is a hyponym of tavern; that is, saloon is a word with a more specific, narrower meaning than tavern:

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

tavern (noun)	saloon (noun)
a building with a bar that is licensed to sell alcoholic drinks	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