Meaning & readings

elementary, principle, naked, uncovered

On’yomi ソ、ス
Kun’yomi もと

Origin

This character combines a thread or strand (, the bottom part meaning textile fibers) with a component suggesting something raw or unfinished at the top. Together, they depict thread in its most basic, unprocessed state—not yet dyed, woven, or finished into cloth. From this image of raw material comes the broader sense of something elementary or fundamental, stripped down to its simplest essence, like bare principles or naked truth. The character essentially shows what comes before refinement, capturing the idea of something in its original, unadorned form.

AI-generated (claude-haiku-4-5), not yet reviewed. Formation type (automated guess): Compound ideographic (combined meanings).

10 strokes

Components

  • meaning part top
  • radical bottom

Common words

  • 塩素 えんそ chlorine (Cl)
  • 簡素 かんそ simple; plain
  • 酵素 こうそ enzyme
  • 酸素 さんそ oxygen (O)
  • 質素 しっそ simple; plain
  • 色素 しきそ pigment; coloring
  • 水素 すいそ hydrogen (H)
  • 素顔 すがお face with no make-up; unpainted face

Reference

Strokes
10
Kangxi radical
120
Grade
Grade 5 (Kyōiku)
Frequency rank
#660 (newspapers)
Former JLPT
level 1
Unicode
U+07D20