noun
A loanword from English, referring to a bar or tavern, especially in a Western or historical context. Not a general Japanese word for a bar.
西部劇に出てくるサルーンで、ガンマンが酒を飲んでいる。
In the saloon that appears in the Western, a gunman is drinking.
バー is the general Japanese word for a bar or pub, while サルーン specifically evokes a Western-style saloon.
居酒屋 is a traditional Japanese-style pub, whereas サルーン refers to a Western-style drinking establishment.
Borrowed from English 'saloon'.