放ほう水すい

ほ

う

す

い

Common wordFreq.FrequencyTop 50,000

放水する · noun or participle which takes 'suru'

Meanings

water discharge; drainage

Used for controlled or natural release of water from a dam, river, or reservoir. Often appears in technical or news reports.

spraying water; hosing

Refers to directing a stream of water at something, such as firefighting, cleaning, or crowd control.

〈場ば所しょ〉に放ほう水すいするto spray water at a place
消しょう防ぼう士しは火か事じの現げん場ばに放ほう水すいした。
The firefighters sprayed water at the scene of the fire.
放ほう水すいを始はじめるto begin discharging water
ダムは大おお雨あめのため放ほう水すいを始はじめた。
The dam began releasing water because of the heavy rain.
〈物もの〉を放ほう水すいで消けすto put out something by spraying water on it
火ひを放ほう水すいで消けした。
They put out the fire by spraying water on it.

排はい水すいN1sense 1
排水 focuses on draining or pumping water away, while 放水 emphasizes releasing or spraying water outward.
散さん水すい sense 2
散水 means gently sprinkling water (e.g. on streets or gardens), while 放水 implies a stronger, directed stream such as firefighting or crowd control.
放ほう流りゅう
放水 refers to discharging water, often for firefighting or flood control, while 放流 is used for controlled water release from a dam or reservoir, or for releasing fish.

給きゅう水すい sense 1
給水 means supplying or providing water, the opposite direction of 放水, which means releasing or discharging it.

防ぼう水すいN1
防水 (ぼうすい) means waterproof and is easily confused with 放水 (ほうすい) due to their similar sound, but the meanings are unrelated.

Compound of 放 (release) and 水 (water). The meaning follows directly from the kanji components.