noun
A formal meal served in the middle of the day.
(New Zealand) A large, cheap, processed sausage served in thin slices.
(dated) Any midday meal; lunch.
(obsolete) A lump of food.
(obsolete) A portion of food taken at any time except at a regular meal; an informal or light repast.
verb
(intransitive, dated) To eat luncheon.
(transitive, rare) To serve luncheon to.