JMdict: 2849417

冷熱 【れいねつ】

  1. [n] coldness and hotness; cooling and heating
  2. [n] indifference and enthusiasm; prosperity and decline
  3. [n] cold energy (e.g. in power generation)
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
冷 Cool, Cold (beer, Person), Chill レイ つめ.たい, ひ.える, ひ.や, ひ.ややか, ひ.やす, ひ.やかす, さ.める, さ.ます 4
熱 Heat, Temperature, Fever, Mania, Passion ネツ あつ.い 4