Collins Concise English Dictionary © HarperCollins Publishers::

grin /ɡrɪn/ vb (grins, grinning, grinned)
  1. to smile with the lips drawn back revealing the teeth or express (something) by such a smile: to grin a welcome
  2. (intransitive) to draw back the lips revealing the teeth, as in a snarl or grimace
  3. grin and bear itinformal to suffer trouble or hardship without complaint
  1. a broad smile
  2. a snarl or grimace
Etymology: Old English grennian; related to Old High German grennen to snarl, Old Norse grenja to howl; see grunt

ˈgrinning adj , n

'grinning' also found in these entries:

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