冷房(れいぼう)

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.