零度(れいど)

れいど
noun
zero degrees
1. zero degrees (temperature or angle)
A reading of 0° — most commonly 0°C (the freezing point of water), but also 0° in angle measurement. Often used in weather and scientific contexts.
今朝(けさ)の気温(きおん)は零度(れいど)だった。
This morning's temperature was zero degrees.
水(みず)は零度(れいど)で凍(こお)る。
Water freezes at zero degrees.
今夜(こんや)は零度(れいど)を下回(したまわ)る予想(よそう)なので、道路(どうろ)が凍(こお)るかもしれない。
Tonight is forecast to drop below zero degrees, so the roads may freeze.

Composed of 零(れい) (zero) + 度(ど) (degree). Default reference is Celsius; specify with 摂氏(せっし)零度(れいど) or 華氏(かし)零度(れいど) if needed.

COMMON COLLOCATIONS:

  • 零度(れいど)以下(いか): below zero
  • 零度(れいど)を下回(したまわ)る: to drop below zero
  • 零度(れいど)に達(たっ)する: to reach zero degrees
  • 氷点下(ひょうてんか): sub-zero (literally 'below freezing point')

SIMILAR WORDS:

  • 氷点(ひょうてん): freezing point — refers to the point at which water freezes, often used in 氷点下(ひょうてんか)
  • マイナス: minus / negative — マイナス五度(ごど) = minus five degrees, very common in weather speech
general
Added 2026.5.13 13:08
27500/27531_reido