The term "real world" refers to the actual, physical world that we live in. It is often used as a contrast to other worlds or realms that exist only in our imagination, such as those found in books, movies, video games, and virtual reality simulations. In this sense, it means everything that happens outside of these imaginary environments - the day-to-day experiences we have in our physical surroundings, including work, school, relationships, and other aspects of life. The phrase can also be used to describe a particular perspective or mindset that is based on practicality and reality rather than idealism or fantasy.