災害

1. Origins, structure, and basic meaning

• Structure: 災害 is read as さいがい and means “disaster”.
• Basic usage: It appears in emergency communication planning and a novel set in a town after a disaster.

2. Common pitfalls and similar expressions

• 災害時 / 災害後
  • Use 災害時 for the time of an emergency and 災害後 for its aftermath.