Use steel wool is a common household cleaning tool used to SCOUR and SCRUB surfaces. SCOUR is a five letter word meaning to clean a surface by rubbing it hard with an abrasive material, while SCRUB is a five letter word meaning to clean a surface by rubbing it with a brush or cloth. Steel wool is a type of metal mesh made from steel that is used for cleaning and polishing surfaces. It is often used to remove rust, paint, and other debris from surfaces.