Smile  —v. (-ling) 1 have or assume a happy, kind, or amused expression, with the corners of the mouth turned up. 2 express by smiling (smiled a welcome). 3 give (a smile) of a specified kind (smiled a sardonic smile). 4 (foll. By on, upon) favour (fortune smiled on me). —n. 1 act of smiling. 2 smiling expression or aspect. [perhaps from scandinavian]