also: おおにんず
noun
Refers to a group that is larger than usual or expected. Often used when discussing capacity, reservations, or events. Antonym: 小人数 (small number of people).
See also: 小人数
大人数での予約は一週間前までにお願いします。
For reservations for a large group, please make them at least one week in advance.
This meeting room is not suitable for a large number of people.