Smile
/smˈaɪl/
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Definition
(noun) A facial expression comprised by flexing the muscles of both ends of one's mouth, often showing the front teeth, without vocalisation, and in humans is a common involuntary or voluntary expression of happiness, pleasure, amusement, goodwill, or anxiety.
Sentence Examples
"Good morning", said Tom with a smile.
Face life with a smile!
CEFR Practice Quiz
A warm ____ spread across her face when she saw her old friend waiting at the airport.