noun
luncheon; formal lunch
A formal or literary term for lunch, often used in official or ceremonial contexts. In everyday speech, 昼食 (ちゅうしょく) or ランチ is more common.
会議の後、昼餐会が開かれた。
After the meeting, a luncheon was held.
昼餐の席で、重要な話がまとまった。
The important matter was settled at the luncheon table.