Entertaiment is a broad category of activities intended to keep people amused, amused and diverted. It can be a one-on-one activity with a film, book or music chosen at will; an entire party; a banquet; ceremonies, celebrations and religious festivals; or performances ranging from a modest gathering to thousands of spectators. The term is often associated with fun and laughter, but entertainments may also have a serious purpose such as satire or moralism.
Entertaiment has been a huge industry in many different fields, and its popular forms have exhibited remarkable longevity and consistency. This probably reflects the way that entertainment hits on points that the human brain was evolved to deeply react to.