laugh
Definitions
To make the spontaneous sounds and movements of the face and body that are the instinctive expressions of lively amusement or derision.
To express mirth, pleasure, or derision with a chuckle or explosive vocal sound.
Examples
She let out a loud laugh when she heard the joke.
It is important to laugh every single day to stay happy.
The children began to laugh uncontrollably at the funny clown.