noun
- a person who dines.
- a railroad dining car.
- a restaurant built like such a car.
- a small, informal, and usually inexpensive restaurant.
noun
- a person eating a meal, esp in a restaurant
- mainly US and Canadian a small restaurant, often at the roadside
- a fashionable bar, or a section of one, where food is served
“one who dines, 1815,” agent noun from dine. Meaning “railway car for eating” is 1890, American English; of restaurants built to resemble dining cars (or in some cases actual converted dining cars) from 1935. The Diner’s Club credit card system dates from 1952.