List of 426 Sets of Synonyms - How they Differ - Total of 2307 Words - 366

SYNONYMS: smile, grin, simper, smirk.
These nouns denote facial expressions, as those indicating amusement, in which the mouth is curved upward slightly at the corners.

Smile is the most general, since it can cover a wide range of feeling, from affection to malice: She met his eye with her sweet hospitable smile.
A grin is a broad smile that exposes the teeth; often it is a spontaneous expression of mirth, good humor, approval, or triumph: He winked at us with a grin.
A simper is a tight-lipped, affected, silly smile expressing self-indulgence.
A smirk is an affected but bolder smile that expresses derision or suggests smugness or conceit.