1. [ verb ] change one's facial expression by spreading the lips, often to signal pleasure
Related terms: grimace grin beam sneer smirk dimple
2. [ noun ] a facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement
Synonyms: grin grinning smiling
Related terms: facial_expression smirk grin
3. [ verb ] express with a smile

: "She smiled her thanks"

Related terms: express
Similar spelling:   Smiley