grin

Noun	1.	grin - a facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement grinning, smile, smiling facial expression, facial gesture - a gesture executed with the facial muscles smirk - a smile expressing smugness or scorn instead of pleasure
Verb	1.	grin - to draw back the lips and reveal the teeth, in a smile, grimace, or snarl smile - change one's facial expression by spreading the lips, often to signal pleasure

Word Browser