smilesmile1 /smaɪl/ ●●● verb 1[intransitive] to have a happy expression on your face in which your mouth curves up: Keith smiled at me. The baby was smiling.THESAURUSgrin – to smile continuously with a very big smile: He walked out of the bathroom grinning from ear to ear.beam – to smile because you are very pleased about something: Jenny ran across the room, beaming with pleasure.smirk – to smile in an unpleasant way, for example because you are pleased by someone else’s bad luck: Some of the snowboarders were smirking at my efforts.simper – to smile in a way that is silly and annoying: Mary-Ann simpered and giggled.2[transitive] to say or express something while you smile: “You’re welcome,” she smiled.