熱 — heat / fever

Grade 4ねつ, あつ

Radical ⽕ · radical 86 The building block this kanji is filed under

熱 (readings: ねつ, あつ; Japanese kanji) means “heat / fever”. It is a Grade 4 Kyōiku kanji, taught in year 4 of Japanese elementary school, and appears in words such as 発熱 (fever).

Try it now

What does 熱 mean?

Full details, readings & example

Kanji	熱
Meaning	heat / fever
Readings	ねつ, あつ
Grade	Grade 4 (Upper)
Curriculum	Kyōiku kanji · Japanese elementary school
Example	発熱 (fever)

How to read 熱

熱 is read ねつ or あつ depending on the word.

Words with 熱

熱帯ねったいnhiệt đới
熱気ねっきkhông khí cuồng nhiệt
熱帯低気圧ねったいていきあつáp thấp nhiệt đới
発熱sốt
熱狂cuồng nhiệt
亜熱帯cận nhiệt đới

Learn 熱 in real sentences — free

Read stories and news built from only the kanji you already know. KanjiSchool’s path covers all 2,136 Jōyō kanji — 1,026 ready to learn now.

Start free — no credit card →

Read this character in a real sentence

Updated: 2026-08-09