tap water

American  

noun

1. water, obtained directly from a faucet or tap, that has not been purified, distilled, or otherwise treated.

---

tap water British  

noun

1. water drawn off through taps from pipes in a house, as distinguished from distilled water, mineral water, etc

---

Etymology

Origin of tap water

First recorded in 1880–85

Example Sentences

"When we drink tap water, we are, depending on where you live, at varying levels of exposure to PFAS," Dr Amati said.

From BBC

Noticing the blue 5-gallon jug of water in the kitchen, he remarked that he would have to remember tap water wasn’t safe to cook with.

From Los Angeles Times

The history professor and editor from Bend, Ore., stuck to tap water during a visit there to celebrate her anniversary with her husband.

From The Wall Street Journal

Instead, it’s all used in the Owens Valley, to provide tap water for towns, nourish habitat restoration areas, and spread on the dry bed of Owens Lake to control dust.

From Los Angeles Times

Freedom of Information data shows the volume of tap water used by Scotland's data centres has quadrupled since 2021.

From BBC