A salon is where you get your hair or nails done, or an elegant room for gathering and conversation, while a saloon is a bar, a type of car, or the seating cabin of a boat. Book a haircut at the salon, not the saloon.
The core difference
Salon covers beauty businesses and elegant gathering rooms, while saloon covers bars, a car body style, and a boat's cabin.
- salon — a business offering hair styling, manicures, or skincare, or a room for cultured gathering: he popped into the salon on his lunch break for a trim.
- saloon — a bar (especially an Old West tavern, or the lounge bar of an English pub), or a car with a separate boot: the sheriff pushed through the saloon doors.
How to tell them apart
Salon and saloon are doublets, meaning they both trace back to the same root word for a large room, but they drifted apart as they passed through French, Italian, and English. Salon kept the more formal, continental sense: a beauty business, or an elegant room where people gathered to talk. Saloon took a more informal, everyday turn, ending up as the word for a tavern, a bar in a British pub, and even a style of car with a boot separate from the passenger cabin.
A simple way to keep them straight: salon is where you go to be pampered or to discuss ideas over refined conversation; saloon is where you go for a drink, or what you call a car with four doors and a boot. In Britain, mixing them up is an easy slip because both words sound similar and share that history, but the settings could not be more different.