<p><strong>Verb (used without object):</strong></p><ul><li>to smile, laugh, or contort the face in a manner that shows scorn or contempt.</li><li>to speak or write in a manner expressive of derision or scorn.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>to utter or say in a sneering manner.</li></ul><p><strong>Noun:</strong></p><ul><li>a look or expression of derision, scorn, or contempt.</li><li>a derisive or scornful utterance, especially one more or less covert or insinuative.</li><li>an act of sneering.</li></ul>