弧 — “Arc / Arch / Bow” in Japanese

Master (高手)こ

Radical ⼸ · radical 57 The building block this kanji is filed under

“Arc / Arch / Bow” in Japanese is 弧, read ko (こ). It is a Jōyō kanji taught in Japanese secondary school (junior & senior high) — the 高手 · Master tier beyond the grade 1–6 Kyōiku set, and appears in words such as 円弧 (arc).

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What does 弧 mean?

Full details, readings & example

Kanji	弧
Meaning	Arc / Arch / Bow
Readings	こ
Grade	Master (高手 · secondary school)
Curriculum	Jōyō kanji · Japanese secondary school (JLPT N1–N2)
Example	円弧 (arc)

How to read 弧

弧 is read ko (こ) depending on the word.

Words with 弧

円弧

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Updated: 2026-08-28