Rubbing is a term that can refer to a variety of activities, including EROSION, BURNING, ABRASION, CHAFING, CLEANING, GRATING, GRINDING, IRRITATING, ABRADING, ATTRITION, and wiping. EROSION is the process of wearing away the surface of something by wind, water, or other natural forces. BURNING is the process of setting something on fire. ABRASION is the process of wearing away a surface by rubbing or scraping. CHAFING is the process of rubbing two surfaces together, causing irritation and discomfort. CLEANING is the process of removing dirt, dust, and other impurities from a surface. GRATING is the process of rubbing a hard surface against another surface to create small pieces. GRINDING is the process of rubbing two surfaces together to reduce them to a powder. IRRITATING is the process of causing discomfort or annoyance. ABRADING is the process of wearing away a surface by rubbing or scraping. ATTRITION is the process of gradually wearing away a surface through friction. Wiping is the process of CLEANING a surface by rubbing it with a cloth.