Difference between Smile and Grinning

SMILE vs GRINNING: NOUN

An expression of the face like that with which a laugh begins, indicating naturally pleasure, moderate joy, approbation, amusement, or kindliness, but also sometimes amused or supercilious contempt, pity, disdain, hypocritical complaisance, or the like. Compare smirk, simper, and grin.
Gay or joyous appearance; an appearance that would naturally be productive of joy: as, the smiles of spring.
Favor; countenance; propitiousness: as, the smiles of Providence.
The act of smiling; a peculiar change or brightening of the face, which expresses pleasure, moderate joy, mirth, approbation, or kindness; -- opposed to frown.
A somewhat similar expression of countenance, indicative of satisfaction combined with malevolent feelings, as contempt, scorn, etc.
Gay or joyous appearance.
A facial expression comprised by flexing the muscles of both ends of one's mouth while showing the front teeth, without vocalisation, and in humans is a common involuntary or voluntary expression of happiness, pleasure, amusement or anxiety.
A facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement
A drink, as of spirit, taken in company and when one person treats another; also, the giving of the treat: as, it is my smile.

A facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement

To look with favor or approval.
To express cheerful acceptance or equanimity.
To express with a smile.
To be propitious or favorable; to favor; to countenance; -- often with on.
To look gay and joyous; to have an appearance suited to excite joy
To express slight contempt by a look implying sarcasm or pity; to sneer.
To express amusement, pleasure, moderate joy, or love and kindness, by the features of the face; to laugh silently.
To have or form a smile.

To show a change of the features such as characterizes the beginning of a laugh; give such an expression to the face: generally as indicative of pleasure or of slight amusement, but sometimes of depreciation, contempt, pity, or hypocritical complaisance.
To look gay or joyous, or have an appearance such as tends to excite joy; appear propitious or favorable: as, the smiling spring.
To drink in company.
To ferment, as beer, etc.
To express by a smile: as, to smile a welcome; to smile content.
To change or affect (in a specified way) by smiling: with a modifying word or clause added.
To smile at; receive with a smile.

Groove, Beam, Hint, Face, Kidding, Happiness, Happy, Flashing, Cheer, Laughing, Laughter, Laugh, Smirk, Grinning, Grin

Waving, Clapped, Sighed, Stared, Hugged, Scowling, Exclaimed, Gesturing, Laughing, Giggling, Beaming, Smirking, Chuckling, Smile, Smiling

Groove, Beam, Hint, Face, Kidding, Happiness, Happy, Flashing, Cheer, Laughing, Laughter, Laugh, Smirk, Grinning, Grin

Shrieked, Joking, Grimacing, Waving, Sighed, Hugged, Scowling, Gesturing, Laughing, Giggling, Beaming, Smirking, Chuckling, Smile, Smiling

According to Smile Direct Club, it takes an average of six months to fix a smile with its Invisible Aligner.
Before his illness, a smile on his lips, that smile widened, she had released the second alien as well.
Instructions on how to use the Smile Stretcher for this activity are included in the New smile guide booklet.
Some of his women smile, but the smile combines with the crafty eyes to make a leer.
You ARE absolutely allowed to smile as long as it is a natural looking smile.
Mike brought his smile into the workplace and spread that smile to everyone with whom he came in contact.
To wear a smile, and see that smile reflected on the face of others.
Express Smile Atlanta, and then not even smile to show off their teeth.
Second, smile and strive to see the customer return a smile.
Cover: Let Your Smile Change the World Inside: Your smile makes me smile!