The English language is rich with synonyms for the word "sink". One may use the word "basin" to describe a washbasin or a basin used for holding water. The word "trough" can refer to a long, narrow container generally used for washing or feeding animals. The word "cistern" is used to describe a large tank or reservoir used to store water. A "well" is a deep hole or structure used to extract water or other liquids, while a "drain" is used for removal of water or waste from a particular area. Lastly, the word "vat" is a large container used for holding liquids such as oil or water. These synonyms can help individuals add variety and depth to their language and writing.