The act of consuming something that gives pleasure. This could include performing arts, reading, or watching television. It is important to make time for these activities, because they help you relax and unwind. They also help you connect with friends and family. You will have a much better, happier life when you get the chance to enjoy them.
Entertaiment is abbreviated as entmt on industry news publications and fliers, in short hand note taking, and occasionally in headlines or newspaper titles. It is rare to see this abbreviation in general prose. It is more likely to be used in a specific context or in an industry where space is of concern, such as a newspaper article.