Meaning & readings

philosophy, clear

On’yomi テツ
Kun’yomi さとい、あきらか
Nanori あき、あきら、さと、さとし、さとる、てっ、てつん、のり、よし

Origin

The character combines a sound hint with a meaning classifier. The top component suggests the pronunciation テツ (tetsu), while the bottom component is a classifier that marks this as a word related to speech or the mouth. Together, they create a character that refers to someone who speaks with clarity and wisdom — someone who is insightful and clear-thinking, which led to the meaning philosophy. The image of clear speech from the mouth eventually generalized to mean both philosophy and the quality of being perceptive or clear.

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

10 strokes

Components

  • sound hint top
  • radical bottom

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

Common words

  • 哲学 てつがく philosophy
  • 哲人 てつじん wise man; philosopher

Reference

Strokes
10
Kangxi radical
30
Grade
Jōyō (secondary school)
Frequency rank
#1093 (newspapers)
Former JLPT
level 1
Unicode
U+054F2