YourDictionary

grin

A grin is a smile or expression of happiness. (noun)

A happy smile on your face is an example of a grin.

To grin is to smile or make an expression that indicates great happiness. (verb)

When you feel very happy and you smile, this is an example of a situation where you grin.

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See grin in Webster's New World College Dictionary

See grin in American Heritage Dictionary 4

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grin

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