/ Dictionary / Index D diner: Meaning and Definition of Find definitions for: din•er Pronunciation: (dī'nur), [key] — n. a person who dines. a railroad dining car. a restaurant built like such a car. a small, informal, and usually inexpensive restaurant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: diner (Thesaurus) dine dinergate Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language