Real Dictionary

salon
A salon is a place where people have their hair cut or coloured, or have beauty treatments.
countable noun: A salon is a shop where smart, expensive clothes are sold.
countable noun: A salon is a sitting room in a large, grand house.
countable noun: A salon is an informal meeting of fashionable writers or artists, which is held at the house of someone who is well-known. Salons were more common in former times.

salon in American English
a large reception hall or social room, as in a hotel or on a ship; saloon
noun: a drawing room or reception room in a large house

salon in British English
noun: a room in a large house in which guests are received