to express mirth, pleasure, derision, or nervousness with an audible, vocal expulsion of air from the lungs that can range from a loud burst of sound to a series of quiet chuckles and is usually accompanied by characteristic facial and bodily movements.
to experience the emotion so expressed: He laughed inwardly at the scene.
to produce a sound resembling human laughter: A coyote laughed in the dark.
to drive, put, bring, etc., by or with laughter (often followed by out, away, down, etc.): They laughed him out of town. We laughed away our troubles.