Entertaiment:
The introduction of technology has dramatically altered the quantity, cost, variety and quality of entertainment available for the public. However, the genres that make up entertainment – storytelling, music, dance and games – remain recognisably the same.
You might see the word entertainment abbreviated to entmt on a flier or in industry news publications when space is at a premium. But entmt is not widely used in general use. Instead, the term is usually spelled out in full.