The word Entertaiment is used to describe anything affording pleasure, diversion or amusement. Solving the daily crossword puzzle is an entertainment for many people. Entertainment also refers to the performances that are offered in a theater, opera or dance. The power of entertainment is demonstrated by the way that it can inspire retellings in different media – the story of Scheherazade from the Persian professional storytelling tradition is famously told as an orchestral work, a film and an innovative video game.
You may sometimes see the word Entertainment abbreviated to entmt on a flier or in industry news publications where space is limited, but it is not generally used in general prose.