The meaning of LAUGH is to show emotion (such as mirth, joy, or scorn) with a chuckle or explosive vocal sound. How to use laugh in a sentence.

LAUGH definition: 1. to smile while making sounds with your voice that show you think something is funny or you are…. Learn more.

Laughter is a typically pleasant physical reaction and emotion consisting usually of rhythmical, usually audible contractions of the diaphragm and other parts of the respiratory system. It is a response to …

The comprehensive definition of laugh. Includes pronunciation, synonyms, etymology, and usage examples to help you master this word.

Explore the common scientific theories about why humans laugh, and how this universal behavior evolved.

Apr 7, 2026 · Explore the science of laughter, why we laugh, and laughter and health benefits, including endorphins, bonding, and proven physical and mental advantages.

Laughter is an essential part of life, and there are countless types! From belly laughs to giggle fits, we've got the different types of laughter covered. Learn the unique characteristics of each type and …

Laugh, chuckle, grin, smile refer to methods of expressing mirth, appreciation of humor, etc. A laugh may be a sudden, voiceless exhalation, but is usually an audible sound, either soft or loud: a hearty …

laugh (lɑːf) vb 1. (intr) to express or manifest emotion, esp mirth or amusement, typically by expelling air from the lungs in short bursts to produce an inarticulate voiced noise, with the mouth open 2. (intr) …

To let out a chuckle or giggle is to laugh: people laugh when something is funny.