緊急

1. Origins, structure, and basic meaning

• Structure: 緊急 is read as きんきゅう and functions as a noun or na-adjective for something urgent or an emergency requiring immediate action.
• Basic usage: An urgent message appears in 緊急の連絡, while an emergency situation appears in 緊急時.

2. Common pitfalls and similar expressions

• Using の before a noun
  • Forms such as 緊急の連絡 and 緊急の対応 commonly use の before the following noun.
• Difference from 急ぎ
  • 急ぎ focuses on a task or matter that must be handled quickly, while 緊急 emphasizes the seriousness of a situation requiring immediate response.