grinned; grinning
Synonyms of grinnext

intransitive verb

: to draw back the lips so as to show the teeth especially in amusement or laughter
broadly : smile
grinning from ear to ear
grinner noun

grin

2 of 2

noun

plural grins
: a facial expression produced by grinning especially in pleasure or amusement
a happy grin
She grew into a nimble young girl of seven winters, a thoughtful girl with shining brown eyes and a wide grinLouise Erdrich
I wanted to wipe the grin off his face [=make him stop smiling.]

Examples of grin in a Sentence

Verb She continued to tease her brother, grinning wickedly. grinned at the kids' fooling around in the pool
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Verb
This plush captures its jolly mood with a big smile and a grinning sun across its belly (complete with sunglasses). Sian Babish, PEOPLE, 3 Aug. 2026 In 2014, Josh Brolin appeared in Hall H, slipped on the Infinity Gauntlet, and grinned. Hannah Abraham, Forbes.com, 26 July 2026
Noun
One of my favorite views on the trail is the grin of a young person riding a bike. Letters To The Editor, The Orlando Sentinel, 1 Aug. 2026 Sean was tall and handsome standing there in the shattered glass with a crafty grin on his face and the sun rising up behind him. Literary Hub, 31 July 2026 See All Example Sentences for grin

Word History

Etymology

Verb

Middle English grennen, from Old English grennian; akin to Old High German grennen to snarl

First Known Use

Verb

before the 12th century, in the meaning defined above

Noun

1565, in the meaning defined above

Time Traveler
The first known use of grin was before the 12th century

Browse Nearby Words

Cite this Entry

“Grin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/grin. Accessed 5 Aug. 2026.

Kids Definition

grinned; grinning
: to draw back the lips so as to show the teeth especially in laughter
grin noun

More from Merriam-Webster on grin

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!