Laughter is the sound people make when they're happy or amused. It's a way of expressing joy.
When people are together, laughter often happens naturally - like when you share a funny joke with friends or family and everyone starts cracking up. You might hear it in TV shows and movies too, like when characters have a silly argument or situation unfolds in a humorous way. Laughter can also be contagious, meaning if one person starts laughing, others might join in because they find the moment funny too.
The sound of laughing, produced by air so expelled; any similar sound.
Example: Their loud laughter betrayed their presence.
