A railway carriage in which food and drink can be bought at a counter, and either taken to another carriage or consumed at the seating provided.
A dining car in a railroad train.
A typically small restaurant, usually modeled after a railroad dining car, that serves lower-class fare, normally having a counter with stools along one side and booths on the other, and often decorated in 50s and 60s pop culture themes and playing popular music from those decades.
One who dines.