雷 — Thunder / Lightning Bolt

Master (高手)らい, かみなり, いかずち, いかづち

Radical ⾬ · radical 173 The building block this kanji is filed under

雷 (readings: らい, かみなり, いかずち, いかづち; Japanese kanji) means “Thunder / Lightning Bolt”. 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 雷雨 (thunderstorm).

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What does 雷 mean?

Full details, readings & example

Kanji	雷
Meaning	Thunder / Lightning Bolt
Readings	らい, かみなり, いかずち, いかづち
Grade	Master (高手 · secondary school)
Curriculum	Jōyō kanji · Japanese secondary school (JLPT N1–N2)
Example	雷雨 (thunderstorm)

How to read 雷

雷 is read らい or かみなり or いかずち or いかづち depending on the word.

Words with 雷

雷雨mưa giông

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Updated: 2026-07-22