/ Thesaurus / G Synonyms of grinning Find synonyms for: Noun1. smile, smiling, grin, grinning, facial expression, facial gestureusage: a facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusementVerb1. grin, smileusage: to draw back the lips and reveal the teeth, in a smile, grimace, or snarlWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reluctant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language