What is another term for a bathroom or washroom sink?

The term "lavatory" is commonly used as another name for a bathroom or washroom sink. In plumbing and building terminology, a lavatory specifically refers to a basin designed for washing hands and face, typically found in bathrooms. This term encompasses both the fixture itself and its intended use, making it a precise description for a sink in a washroom context.

While a bathtub refers to a larger fixture designed for soaking and bathing, a vanity generally refers to the combination of the sink and the cabinetry beneath it that provides storage. A faucet, on the other hand, is the device that controls the flow of water into the sink. Understanding these distinctions helps clarify why "lavatory" is the appropriate choice when referencing a washroom sink.