恒 — Constancy / Always

Master (高手)こう, つね, つねに

Radical ⼼ · radical 61 The building block this kanji is filed under

恒 (readings: こう, つね, つねに; Japanese kanji) means “Constancy / Always”. 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 恒星 (fixed star).

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What does 恒 mean?

Full details, readings & example

Kanji	恒
Meaning	Constancy / Always
Readings	こう, つね, つねに
Grade	Master (高手 · secondary school)
Curriculum	Jōyō kanji · Japanese secondary school (JLPT N1–N2)
Example	恒星 (fixed star)

How to read 恒

恒 is read こう or つね or つねに depending on the word.

Words with 恒

恒星hằng tinh

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Updated: 2026-07-22