Meaning & readings

wash, inquire into, probe

On’yomi セン
Kun’yomi あら.う
Nanori あらい、らい

Origin

The character combines water on the left, shown by the three-stroke water radical, with (sen) on the right. The component provides a sound hint for how to pronounce the character rather than contributing to its meaning. Since washing fundamentally involves water, the water radical carries the core meaning, while tells you the character sounds like "sen" in Japanese. Over time, the "wash" meaning extended to include "to inquire into" or "to probe," as if you're washing away layers to get to the truth underneath.

AI-generated (claude-haiku-4-5), not yet reviewed. Formation type (automated guess): Phono-semantic (meaning + sound hint).

9 strokes

Components

  • radical left
  • sound hint right

A sound hint component points at the character’s pronunciation, not its meaning — don’t read a meaning into it.

Common words

  • 水洗 すいせん washing with water; rinsing
  • 洗う あらう to wash; to cleanse
  • 洗剤 せんざい detergent; cleanser
  • 洗浄 せんじょう washing; cleansing
  • 洗濯 せんたく washing; laundry
  • 洗脳 せんのう brainwashing
  • 洗髪 せんぱつ washing one's hair; having a shampoo
  • 洗面 せんめん washing one's face

Reference

Strokes
9
Kangxi radical
85
Grade
Grade 6 (Kyōiku)
Frequency rank
#1168 (newspapers)
Former JLPT
level 3
Unicode
U+06D17