隊員

1. Origins, structure, and basic meaning

• Structure: 隊員 (たいいん) adds member 員 to unit or corps 隊 to denote an individual team member.
• Basic usage: It identifies a person serving in an organized unit such as a rescue team.

2. Common pitfalls and similar expressions

• A member rather than the entire unit
  • 隊員 refers to one participant in the corps, while 隊 denotes the organized group as a whole.