Meaning & readings

harm, injury

On’yomi ガイ

Origin

This character most likely combines the idea of something harmful striking downward. The shape appears to show a cover or roof on top with something destructive coming down from above — like a roof being damaged or something falling and causing injury. Over time, the pictorial details simplified into the modern form, but the core idea remained: something that damages or harms you. The character eventually came to mean harm or injury in general, not just physical damage to a building.

AI-generated (claude-haiku-4-5), not yet reviewed. Formation type (automated guess): Pictographic or simple.

10 strokes

Components

This character is treated as a single, undivided shape (害).

  • meaning part

Common words

  • 害虫 がいちゅう harmful insect; noxious insect
  • 危害 きがい injury; harm
  • 公害 こうがい pollution; public nuisance
  • 災害 さいがい calamity; disaster
  • 殺害 さつがい killing; murder
  • 傷害 しょうがい injury; inflicting bodily injury
  • 障害 しょうがい obstacle; impediment
  • 侵害 しんがい infringement; violation

Reference

Strokes
10
Kangxi radical
40
Grade
Grade 4 (Kyōiku)
Frequency rank
#358 (newspapers)
Former JLPT
level 2
Unicode
U+05BB3