/ˈsmaɪ.əl/
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 or anxiety.Favour; propitious regard.A drink bought by one person for another.verb
To have (a smile) on one's face.To express by smiling.To express amusement, pleasure, or love and kindness.To look cheerful and joyous; to have an appearance suited to excite joy.To be propitious or favourable; to countenance.