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grin1

[grin] /grɪn/
verb (used without object), grinned, grinning.
1.
to smile broadly, especially 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.
verb (used with object), grinned, grinning.
4.
to express or produce by grinning:
The little boy grinned his approval of the gift.
noun
5.
a broad smile.
6.
the act of producing a broad smile.
7.
the act of withdrawing the lips and showing the teeth, as in anger or pain.
Origin
1000
before 1000; Middle English grinnen, grennen, Old English grennian; cognate with Old High German grennan to mutter
Related forms
grinner, noun
grinningly, adverb
Synonyms
1. See laugh.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for grinner

grin

/ɡrɪn/
verb 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.
(informal) grin and bear it, to suffer trouble or hardship without complaint
noun
4.
a broad smile
5.
a snarl or grimace
Derived Forms
grinner, noun
grinning, adjective, noun
Word Origin
Old English grennian; related to Old High German grennen to snarl, Old Norse grenja to howl; see grunt
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for grinner

grin

v.

Old English grennian "show the teeth" (in pain or anger), common Germanic (cf. Old Norse grenja "to howl," grina "to grin;" Dutch grienen "to whine;" German greinen "to cry"), from PIE root *ghrei- "be open." Sense of "bare the teeth in a broad smile" is late 15c., perhaps via the notion of "forced or unnatural smile." Related: Grinned; grinning.

n.

1630s, from grin (v.).

Online Etymology Dictionary, © 2010 Douglas Harper
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