- An expression of mirth peculiar to the human species; the
sound heard in laughing; laughter. See Laugh, v. i.
2. Laugh [v. i.]
- To show mirth, satisfaction, or derision, by peculiar
movement of the muscles of the face, particularly of the mouth, causing
a lighting up of the face and eyes, and usually accompanied by the
emission of explosive or chuckling sounds from the chest and throat; to
indulge in laughter. - Fig.: To be or appear gay, cheerful, pleasant, mirthful,
lively, or brilliant; to sparkle; to sport.
3. Laugh [v. t.]
- To affect or influence by means of laughter or ridicule. - To express by, or utter with, laughter; -- with out.