The term 'rub away' can be defined by four crossword solutions: ABRADE (6 letters), ERASE (5 letters), ERODE (5 letters), and EFFACE (6 letters). ABRADE means to wear away or scrape off a surface by friction, while ERASE means to remove or delete something written or drawn. ERODE means to gradually destroy or be gradually destroyed by natural forces such as wind or water, and EFFACE means to make something indistinct or unrecognizable. All of these words describe the action of rubbing away something, whether it be a physical object or an idea.