冷 房(れいぼう)

れいぼう

noun

air conditioning

1. air conditioning, cooling

A system that cools the air in a room or building.

冷房(れいぼう)を消(け)してください。

Please turn off the air conditioning.

冷房(れいぼう)をつけてください。

Please turn on the air conditioning.

夏(なつ)は冷房(れいぼう)なしでは過(す)ごせない。

I can't get through summer without air conditioning.

冷房(れいぼう)の温度(おんど)を上(あ)げてもらえますか。

Could you raise the air conditioning temperature?

冷房(れいぼう)が効(き)きすぎて寒(さむ)くなったので、少(すこ)し温度(おんど)を上(あ)げた。

The air conditioning got too cold, so I raised the temperature a bit.

冷房(れいぼう) specifically refers to cooling/air conditioning, as opposed to heating. The word combines 冷(れい) (cold) + 房(ぼう) (room/chamber).

Common collocations

冷房(れいぼう)をつける: to turn on AC
冷房(れいぼう)を消(け)す: to turn off AC
冷房(れいぼう)が効(き)く: AC works well / is effective
冷房(れいぼう)が効(き)きすぎる: AC is too strong/cold
冷房(れいぼう)完備(かんび): fully air-conditioned

Similar words

エアコン: air conditioner (the device, covers both cooling and heating)
クーラー: cooler, AC unit (slightly dated term)
空調(くうちょう): climate control (formal/technical)
暖房(だんぼう): heating (the opposite of 冷房(れいぼう))

Usage

In summer, 冷房(れいぼう)病(びょう) (air conditioning sickness) from excessive cold is a common topic in Japan.

Related Words

Antonym: 暖房(だんぼう) (heating)

Related: クーラー (cooling unit (slightly dated))

Compare: エアコン (air conditioner)

Compare: 空調(くうちょう) (climate control)

Antonym: 送風(そうふう) (ventilation)

Related: 弱冷房車(じゃくれいぼうしゃ) (mildly air-conditioned train car)

core

Added 2026.1.9 21:15 · Revised 2026.10.8 11:00

01500/01755_reibou