Smile/smaɪl/ Definition 1 of 4Pro Tip 1/3Warm Welcome Used to express friendliness when meeting someone. Upon my arrival, they all looked up and gave me a smile. Pro Tip 2/3Positive Response Indicates contentment or satisfaction in social interactions. During the interview, his smile suggested he was happy with the answer. Pro Tip 3/3Non-verbal Cue A smile can communicate positive feelings without words. In the silent room, her smile said everything.