dinner definition
Wiktionary(0.00 / 0 votes)Rate this definition: 1  dinner(Noun) The main meal of the day, often eaten in the evening. 2  dinner(Noun) An evening meal. 3  dinner(Noun) A midday meal 4  . dinner(Noun) A meal given to an animal.  dinner(Noun) A formal meal for many people eaten for a special occasion.