1. [verb] (intransitive) To raise a corner of the upper lip slightly, especially in scorn
2. [verb] (transitive) To utter with a grimace or contemptuous expression; to say sneeringly.
3. [noun] A facial expression where one slightly raises one corner of the upper lip, generally indicating scorn.
4. [noun] A display of contempt; scorn.
5. [noun] A facial expression of contempt or scorn; the upper lip curls.
6. [noun] A contemptuous or scornful remark.
7. [verb] Express through a scornful smile; 'she sneered her contempt'.
8. [verb] Smile contemptuously; 'she sneered at her little sister's efforts to play the song on the piano'.
