熱する|ねっするnessuru[4]odaka (tail-high)

JLPT N2approx.Common
Definitions
  1. suru verb (irregular), transitive verb, intransitive verbto heat; to heat up
    水みずは熱ねっせられると蒸気じょうきになる。↗
    Water changes into vapor when it is heated.
  2. suru verb (irregular), intransitive verbto get excited; to get worked up; to get fired up
Conjugation
Dictionary form熱する(ねっする)
Polite (masu)熱します(ねっします)
Negative (nai)熱しない(ねっしない)
polite (masen)熱しません(ねっしません)
classical zu / nu熱せず・熱せぬ(ねっせず・ねっせぬ)
Past (ta)熱した(ねっした)
polite (mashita)熱しました(ねっしました)
Past negative (nakatta)熱しなかった(ねっしなかった)
polite (masen deshita)熱しませんでした(ねっしませんでした)
Te form熱して(ねっして)
Potential熱できる(ねっできる)
Passive熱される(ねっされる)
Causative熱させる(ねっさせる)
Causative passive熱させられる(ねっさせられる)
Conditional (ba)熱すれば(ねっすれば)
tara熱したら(ねっしたら)
Volitional熱しよう(ねっしよう)
polite (mashou)熱しましょう(ねっしましょう)
Imperative熱しろ(ねっしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym温めるあたためるNeutralWarms food or the body to a comfortable temperature, and figuratively means mulling an idea over; 「熱する」 makes things hot and can describe getting fired up.
  • Related加熱かねつWrittenWritten word for heating as a process, also usable as 「加熱する」; common in cooking instructions and industry. 「熱する」 can also describe emotional excitement.
  • Related加温かおんWrittenWritten word for raising the temperature, typical of keeping greenhouses or pools warm; 「熱する」 is about making an object hot.
  • Antonym冷ますさますNeutralThe opposite of 「熱する」 in terms of heat: it means letting something cool down.
  • Antonym冷却するWrittenWritten-style antonym of 「熱する」: it means cooling something down or lowering its temperature.

Use 「熱する」 to make something hot or, figuratively, to get fired up; 「温める」 for warming food or your body; 「加熱」 for heating as a process in cooking or industry; 「加温」 for raising the temperature of a space. The opposites are 「冷ます」 and 「冷却する」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 温度おんどが熱ねつを感かんじる程度ていどまで上あがる。
  2. 熱ねつを加くわえ、ある物ものの温度おんどを上あげる。
  3. 感情かんじょうが高たかぶる。情熱的じょうねつてきになる。
Kanji in this word
English equivalents
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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