The practice of sprinkling water (typically in summer) on streets, gardens, or entrances to suppress dust and cool the surroundings by evaporation; used as a noun and as the verb phrase 'to do uchimizu'.
夏の夜、商店街の人たちが打ち水をして通りを涼しくした。
On summer nights, the shopkeepers sprinkled water to cool the street.
打ち水は簡単なエコ活動として見直されている。
Uchimizu is being reconsidered as a simple eco-friendly practice.
朝早く庭に打ち水をしてから出かけた。
I sprinkled water in the garden early in the morning before going out.