‘饮用水’ literally means ‘drink-use water’ — combining 饮 (to drink), 用 (to use), and 水 (water). It specifically refers to water that is safe for human consumption, having been treated or tested to meet health standards. Unlike generic terms like ‘水’ (water) or ‘自来水’ (tap water), ‘饮用水’ emphasizes safety and potability, often appearing on bottled water labels, public health notices, or municipal water reports.

This term is formal and technical, commonly used in official contexts such as government regulations, medical advice, environmental monitoring, and food service standards. It’s rarely used in casual speech — native speakers typically say ‘瓶装水’ (bottled water) or ‘开水’ (boiled water) in daily life. The word underscores a functional distinction: water intended *for drinking*, not for washing, irrigation, or industrial purposes.