WordReference Random House Learner's Dictionary of American English © 2017
grin1 /grɪn/USA pronunciation   v.,  grinned, grin•ning, n. 
  1. to smile broadly: [no object]He grinned delightedly.[+ at + object]She grinned at her guest.[+ object]He grinned his appreciation.

n. [countable]
  1. a broad smile.
  1. grin and bear it, to suffer from something unpleasant without complaining.

WordReference Random House Unabridged Dictionary of American English © 2017
grin1  (grin),USA pronunciation v.,  grinned, grin•ning, n. 
  1. to smile broadly, esp. as an indication of pleasure, amusement, or the like.
  2. to draw back the lips so as to show the teeth, as a snarling dog or a person in pain.
  3. to show or be exposed through an opening, crevice, etc.

  1. to express or produce by grinning:The little boy grinned his approval of the gift.

  1. a broad smile.
  2. the act of producing a broad smile.
  3. the act of withdrawing the lips and showing the teeth, as in anger or pain.
grinner, n. 
grinning•ly, adv. 
  • bef. 1000; Middle English grinnen, grennen, Old English grennian; cognate with Old High German grennan to mutter
    • 1.See corresponding entry in Unabridged See  laugh. 

grin2  (grin),USA pronunciation  n., v.,  grinned, grin•ning. 
  1. Scottish Terms[Chiefly Scot.]a snare like a running noose.

  1. to catch in a nooselike snare.
  • Middle English grin(e), Old English grin, gryn bef. 900

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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