grin

verb1 of 2

to smile a big smile

• “Already I see you, jokers, grinning from ear to ear.”Tatoeba
• “You need to take a step back from the daily grind.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

noun2 of 2

A smile in which the lips are parted to reveal the teeth.