待機

1. Origins, structure, and basic meaning

• Structure: 待機 (たいき) is an action noun for remaining ready at a designated place while awaiting instructions or deployment.
• Basic usage: 入口で待機してください marks the place to wait until instructions, while 救助隊は待機していた describes a rescue team remaining ready for immediate action.

2. Common pitfalls and similar expressions

• Waiting location and deployment readiness
  • 入口で待機する emphasizes staying at a location, whereas 救助隊が待機する also includes operational readiness. It differs from unprepared leisure.