luncheon

Short definition from Wiktionary

Noun

1. 1
   A formal meal served in the middle of the day.
2. 2
   A large, cheap, processed sausage served in thin slices.
3. 3
   Any midday meal; lunch.
4. 4
   A lump of food.
5. 5
   A portion of food taken at any time except at a regular meal; an informal or light repast.

Verb

1. 1
   To eat luncheon.
2. 2
   To serve luncheon to.