diner dine out • diner-out · · · Info · Definitions · Synonyms · Characters · · diner · · Text Latin · · Script 5 · · Length 2 · · Syllables Definitions · · · (noun) a person eating a meal (especially in a restaurant). · · Noun Definition 1 (noun) a passenger car where food is served in transit. Synonyms: dining car, dining compartment, buffet car. · · Noun Definition 2 (noun) a restaurant that resembles a dining car. · · Noun Definition 3 Synonyms · · · dining car · · Synonym 1 dining compartment · · Synonym 2 buffet car · · Synonym 3 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E r latin small letter r U+0072