noun
cold water; chilled water
Refers to water that is cold, especially in practical contexts such as washing, cooling food, or drinking. In casual speech, 冷たい水 is often a more conversational equivalent.
ゆでた麺を冷水でしめる。
Rinse the boiled noodles in cold water to firm them up.
運動の後で冷水を飲んだ。
I drank cold water after exercising.