Definition
A water faucet (or tap) is a valve that controls the release of water. It's what you use to get water from a plumbing system. Think of it as the gatekeeper of your water supply. Turning it one way lets water flow; turning it the other way stops it. Unlike a simple on/off switch, some faucets let you adjust the water temperature. This simple tool is essential for everyday life, from washing hands to filling a glass.