The suspension of the water supply; a water outage when tap water is not available (often due to maintenance or disasters).
昨夜の大雨で町の一部が断水した。
Heavy rain last night caused a water outage in part of the town.
水道工事のため明日午前9時から3時間断水します。
Due to waterworks, the water will be shut off tomorrow from 9:00 a.m. for three hours.
台風の影響で広域に断水が発生している。
A wide-area water outage has occurred due to the typhoon.