lun·cheon /ˈlʌnʧən/
  午宴,正式的午餐
  Lunch·eon n.
  1. A lump of food. [Prov. Eng.]
  2. A portion of food taken at any time except at a regular meal. [obsolescnet]
  Lunch·eon, v. i. To take luncheon.
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  luncheon
       n : a midday meal [syn: lunch, tiffin, dejeuner]