Entertaiment is an interesting word because of the multiple ways it can be interpreted and used. It can be a source of amusement or diversion, as in playing a game of golf or working the daily crossword puzzle; it can also have a more serious purpose like ceremonial occasions, religious festivals, or satire. Even sports that began as military exercises can now be televised entertainment for a global audience.
It is also possible for the activity to have an aesthetic impact, as in painting, sculpture, or literature. It can also evolve from an intimate activity between two people to a larger group or event. It is not uncommon to see the term abbreviated to entmt. on a flier or in industry news publications where space is limited.