Entertaiment — a thing affording pleasure or diversion; a diverting story.
In some cases, you might abbreviate entertainment to entmt on a flier or in industry news publications where space is limited, but it’s not commonly used for general writing.
Children entertain themselves by engaging in playful activities that mimic adult behaviour, such as watching performances (television), rearing pets, and participating in group games. Some leisure activities, such as hunting or warfare, have evolved into spectator sports and then into television events. In addition, art has a seemingly unlimited capacity to be remixed across media and generations. This is part of the entertainment that keeps us all amused.