Grin vs. Smile

Difference Between Grin and Smile
Grinnoun
A smile in which the lips are parted to reveal the teeth.
Smilenoun
A facial expression comprised by flexing the muscles of both ends of one's mouth, often showing the front teeth, without vocalisation, and in humans is a common involuntary or voluntary expression of happiness, pleasure, amusement or anxiety.
She's got a perfect smile.He has a sinister smile.She had a smile on her face.He always puts a smile on my face.Grinnoun
(obsolete) A snare; a gin.
Smileverb
(ambitransitive) To have (a smile) on one's face.
When you smile, the whole world smiles with you.I don't know what he's smiling about.She smiles a beautiful smile.Grinverb
(intransitive) To smile, parting the lips so as to show the teeth.
Why do you grin?Did I say something funny?Smileverb
(transitive) To express by smiling.
to smile consent, or a welcomeGrinverb
(transitive) To express by grinning.
She grinned pleasure at his embarrassment.Smileverb
(intransitive) To express amusement, pleasure, or love and kindness.
Grinverb
To show the teeth, like a snarling dog.
Smileverb
(intransitive) To look cheerful and joyous; to have an appearance suited to excite joy.
The sun smiled down from a clear summer sky.Grinverb
(transitive) To grin as part of producing a particular facial expression, such as a smile or sneer.
He grinned a broad smile when I told him the result.He grinned a cruel sneer when I begged him to stop.Smileverb
(intransitive) To be propitious or favourable; to countenance.
The gods smiled on his labours.Grinnoun
a facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement
Smilenoun
a facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement
Grinverb
to draw back the lips and reveal the teeth, in a smile, grimace, or snarl
Smileverb
change one's facial expression by spreading the lips, often to signal pleasure
Smileverb
express with a smile;
She smiled her thanks