Meet 熱 in everyday situations and learn each reading with a complete word.
The idea
熱 has 15 strokes; follow the linked diagram. 熱（ねつ） means heat or fever, 熱い（あつい） describes something hot, 加熱（かねつ） means heating, and 熱心（ねっしん） means enthusiastic.
Examples
- 今日は熱があります。I have a fever today.
- 熱が下がりました。The fever has gone down.
- このスープは熱いです。This soup is hot.
- 牛乳を加熱してください。Please heat the milk.
- 彼女は音楽に熱心です。She is enthusiastic about music.
- 熱が鍋から水に伝わります。Heat is transferred from the pan to the water.
Read-aloud uses a synthetic Japanese voice available on your device. Voice quality and availability vary; it does not assess your pronunciation.
No Japanese device voice is available. You can still read the text and use the linked listening resources.
Watch out
熱い describes a hot object; 暑い describes hot weather. In 熱心, the small っ makes a pause before し; do not read it ねつしん.
Try it yourself
Write the reading of 熱 in hiragana.
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ねつ
熱 is ねつ: 熱がある means to have a fever.
Write the reading of 熱心 in hiragana.
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ねっしん
熱心 is ねっしん: the small っ marks a held consonant; 音楽に熱心 describes enthusiasm for music.
Choose the missing kanji: 加＿（かねつ）［熱／然］.
Show answer or example answer
熱
熱 completes 加熱（かねつ）, heating; 加熱してください asks someone to heat something.
Practice round
Answer questions, then rebuild Japanese sentences where available. We keep your score.
Write the reading of 熱 in hiragana.
Write the reading of 熱心 in hiragana.
Choose the missing kanji: 加＿（かねつ）［熱／然］.
Tap the words in the right order.
Tap the words in the right order.
Tap the words in the right order.
Keep your progress
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Write 熱 using the diagram, then cover the readings and say 熱, 加熱 and 熱心 aloud. Make a sentence about a hot drink.