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Kotomora

丗

thirty

Strokes5

Readings

On'yomi

  • セイ
  • セ
  • ソウ

Kun'yomi

  • よ
  • さんじゅう

Meaning

丗 represents the number thirty, a specific numeric value.

Study

Etymology

丗 is an older form of 世, originally derived from a pictograph of three ten-like shapes joined together to represent thirty. The modern form 世 is more common, while 丗 retains the extra stroke.

Meaning mnemonic

The shape resembles three tens (十) stacked or combined, visually suggesting thirty.

Reading mnemonic

For セイ, imagine saying 'say' thirty times: 'say' -> セイ, and the repetition reinforces the number thirty.