(grins, grinning, grinned)
1.
When you grin, you smile broadly.
He grins, delighted at the memory...
Sarah tried several times to catch Philip's eye, but he just grinned at her.
...a statue of a grinning old man cutting the throat of a deer.
VERB: V, V at n, V-ing
2.
A grin is a broad smile.
She came out of his office with a big grin on her face...
Bobby looked at her with a sheepish grin.
N-COUNT: oft adj N
3.
If you grin and bear it, you accept a difficult or unpleasant situation without complaining because you know there is nothing you can do to make things better.
They cannot stand the sight of each other, but they will just have to grin and bear it.
PHRASE: Vs inflect