Definition of Grin

(v. t.)
To express by grinning.
  

(v. i.)
To show the teeth, as a dog; to snarl.
  

(v. i.)
To set the teeth together and open the lips, or to open the mouth and withdraw the lips from the teeth, so as to show them, as in laughter, scorn, or pain.
  

(n.)
The act of closing the teeth and showing them, or of withdrawing the lips and showing the teeth; a hard, forced, or sneering smile.
  

(n.)
A snare; a gin.
  

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grin
\grin\ (gr&ibreve;n), n. [as. grin.] a snare; a gin. [obs.] like a bird that hasteth to his grin. --remedy of love.
grin
\grin\, v. i. [imp. & p. p. grinned (gr&ibreve;nd); p. pr. & vb. n. grinning.] [oe. grinnen, grennen, as. grennian, sw. grina; akin to d. grijnen, g. greinen, ohg. grinan, dan. grine. ?35. cf. groan.]
1. to show the teeth, as a dog; to snarl.
2. to set the teeth together and open the lips, or to open the mouth and withdraw the lips from the teeth, so as to show them, as in laughter, scorn, or pain. the pangs of death do make him grin.
grin
\grin\, v. t. to express by grinning. grinned horrible a ghastly smile.
grin
\grin\, n. the act of closing the teeth and showing them, or of withdrawing the lips and showing the teeth; a hard, forced, or sneering smile. watts. he showed twenty teeth at a grin.

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  similar words(1) 

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 sardonic grin 

Dysgyrnu = v. to grin, to snarl

Esgyrnygu = v. to grin

Gorwenu = v. to laugh, to grin

Swrnach = n. a snarl, a grin

Ysgyrnwg = n. a snarl, a grin

  girn  ring

fake grin (from the request by a photographer to say "cheese", to produce an apparent smile in the subject)

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Noun
1. a facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement
(synonym) smile, smiling, grinning
(hypernym) facial expression, facial gesture
(hyponym) smirk

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Verb
1. to draw back the lips and reveal the teeth, in a smile, grimace, or snarl
(hypernym) smile
(derivation) grinner

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