1. laughter - Noun
2. laughter - Verb
3. Laughter - Proper noun
A movement (usually involuntary) of the muscles of the face, particularly of the lips, with a peculiar expression of the eyes, indicating merriment, satisfaction, or derision, and usually attended by a sonorous and interrupted expulsion of air from the lungs. See Laugh, v. i.
Source: Webster's dictionaryLaughter has been implanted in our soul, that the soul may sometime be refreshed. John Chrysostom
A day without laughter is a day wasted. Charlie Chaplin
The most wasted of all days is one without laughter. E. E. Cummings
Laughter is the shortest distance between two people. English Proverb
Many families are built on laughter. Hindi Proverb
Laughter makes good blood. Italian Proverb