十人

1. Origins, structure, and basic meaning

• Structure: 十人 is read じゅうにん. It means ten people.
• Basic usage: It states the number attending a meeting or the maximum number allowed in a room at one time.

2. Common pitfalls and similar expressions

• Modifying a group noun
  • 十人の委員 means ten committee members, with the role following の.
• Upper limit with まで
  • 一度に十人まで入れる sets ten people as the maximum admitted at one time.