What is the meaning of Diner?

Someone who dines.

Someone who gives a dinner.

A car in a railroad train that serves meals.

A typically small restaurant, historically 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.

A commemorative currency of Andorra, not legal tender, divided into 100 centims.

denary

money

denier

denarius

penny

dinner, supper

post-1990 spelling of dîner

alternative form of dyner

diner (a small and inexpensive type of restaurant)

alternative form of dner

Source: wiktionary.org