A wash basin is a common household fixture that is used for washing hands and face. However, there are various other names that can be used to refer to this essential bathroom item. Some popular synonyms for a wash basin include sink, vanity basin, bathroom sink, washbowl, washstand, hand basin, and lavatory basin. These words can be used interchangeably, depending on the context and the preferences of the user. No matter what you call it, a wash basin remains a functional and necessary item that helps keep you clean and hygienic.