- (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.
- (v.t.) To express by grinning.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). grin. Retrieved September 21, 2026, from http://smartdefine.org/grin/definitions/2013747 |
| Chicago | Webster's. 2011. "grin" http://smartdefine.org/grin/definitions/2013747 (accessed September 21, 2026). |
| Harvard | Webster's 2011, grin, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/grin/definitions/2013747>. |
| MLA | Webster's. "grin" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/grin/definitions/2013747> |