The word entertainment is used for a wide range of activities that entertain people. They can be a private activity such as a movie for two, or public performances like concerts or sporting events. Entertainment can also take the form of storytelling which is often a way to teach or impart a moral. The story of Scheherazade from the Persian professional storytelling tradition is a classic example. It inspired composers Rimsky-Korsakov and Ravel to write orchestral works; director Pasolini made a film adaptation, and there is even a video game based on the story.
Entertainment can stimulate the brain to realease seratonin and dopamine, it can make you feel good. It can make you laugh, or it can be sad and touching.