The term CLEANSE BY RUBBING can be solved by two crossword solutions: SCOUR and POLISH. Scouring is a cleaning process that involves rubbing a surface with an abrasive material, such as steel wool or sandpaper, to remove dirt, stains, or other impurities. Polishing is a similar process, but it uses a softer material, such as a cloth, to bring out the shine of a surface. Both processes are used to clean and maintain surfaces, and they are often used together to achieve a desired result.