English Reference
noun · verb

grin

n. · v.
US /ˈɡɹɪn/ UK /ɡɹˈɪn/ grin UK spelling grinned, grins

  1. 01 B1 Intermediate

    n.a big, wide smile that shows your teeth.

    n.a facial expression characterized by a broad smile that reveals the teeth.

    Simple

    He had a huge grin on his face after winning the race.

    In context

    A mischievous grin spread across her face as she realized her prank had worked perfectly.

    frownscowl
  2. 02 B1 Intermediate

    v.to smile a big, wide smile that shows your teeth.

    v.to smile broadly, typically exposing the teeth in an expression of amusement or pleasure.

    Simple

    The children were grinning from ear to ear when they saw the cake.

    In context

    The professor grinned at the student's clever observation, clearly impressed by the depth of the analysis.

    frownscowl
  3. 03 B2 Upper Intermediate

    v.to show a feeling, like happiness or agreement, by smiling widely.

    v.to express or communicate a specific emotion or state of mind through the act of grinning.

    Simple

    He grinned his approval when I suggested going for pizza.

    In context

    She simply grinned her delight, unable to find the words to describe how much the surprise meant to her.

With a self-effacing grin, they point out that those photos are “in the back” of the venue.

The Guardian· 14 Aug 2026

In another , Anastasia grins at the camera as she sneaks a puff of her father’s cigarette.

Smithsonian Magazine· 16 Jul 2026

Etymology 1

From Middle English grinnen, from Old English grennian, from Proto-West Germanic grannjōn, from Proto-Germanic granjōną. Related to groan. Compare to Middle High German grennen (“to mutter, complain”) and Danish grine (“to show one's teeth, to laugh”)

Etymology 2

From Middle English grin, grinne, grine, from Old English grin (“snare, noose”), of uncertain origin, but probably from the merger of Proto-West Germanic garni and garnī (“intestine”), ultimately from Proto-Germanic garniz, garnō (“guts, intestine”). Related to English yarn.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin gem-pro *granjōną
Level C1 · Advanced
Frequency Frequent
Updated