A wash-hand basin, also known as a washbasin or a lavatory, is a bowl-shaped container used for washing hands. Often found in bathrooms or powder rooms, wash-hand basins come in various shapes, sizes, and materials. Some synonyms for a wash-hand basin include a sink, hand basin, washbowl, washstand, or wash basin. These terms are often used interchangeably, and the choice of word may depend on the speaker's preference or regional dialect. Regardless of the name, a wash-hand basin is an essential element of any bathroom, providing a convenient and hygienic place to wash hands and freshen up.