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Webster 1828 Edition

Grinning

GRIN'NING

,

ppr.

Closing the teeth and showing them, as in laughter; a showing of the teeth.

Definition 2024

grinning

grinning

English

Verb

grinning

present participle of grin
I’m grinning because someone told me a joke.

Noun

grinning ‎(plural grinnings)

The act or expression of one who grins.
- Thomas Babington Macaulay
  The agitations resembled the grinnings and writhings of a galvanized corpse, not the struggles of an athletic man.