Entertaiment is a word that often gets used in a very light and fun way. It hits on the points that human brains were evolved to react deeply to, for example murder, backstabbing and other social themes. Entertainment is also known to stimulate the brain to realease seratonin and dopamine, which gives a good feeling. It is a very popular and universal medium that has demonstrated a remarkable ability to evolve and adapt, and it can be created on a scale that ranges from individual choice of private entertainment; to banquets adapted for two; to performances intended for thousands.
Entertaiment is sometimes abbreviated to entmt on fliers, in industry news publications and in short hand note taking.