Sander is a common name that can refer to various individuals or concepts. In some contexts, it may refer to a person, such as a notable figure in arts or sciences. The name is derived from the Greek name "Alexander," meaning "defender of the people." In addition to being a name, "sander" can also refer to a tool used in woodworking and metalworking. This tool smooths surfaces by removing material, often using sandpaper. There are different types of sanders, including orbital sanders and belt sanders, each designed for specific tasks.