Sander -
A machine to mechanize the process of sanding.
Sander -
A device which spreads sand in snowy or icy conditions to improve traction.
Sander -
Previously a small device resembling a saltshaker but containing sand that was shaken over a document to remove excess ink.
Wikipedia
A sander is a power tool used to smooth wood and automotive or wood finishes by abrasion with sandpaper. Sanders have a means to attach the sandpaper and a mechanism to move it rapidly contained within a housing with means to hand-hold it or fix it to a workbench. Woodworking sanders are usually powered electrically, and those used in auto-body repair work by compressed air.
