World From Top, By Klaus Lerdorf

'World', in original sense, when qualified, can also refer to a particular domain of human experience.
The world of work describes paid work and the pursuit of career, in all its social aspects, to distinguish it from home life and academic study.
The fashion world describes the environment of the designers, fashion houses and consumers that make up the fashion industry.
historically, the New World vs. the Old World, referring to the parts of the world colonized in the wake of the age of discovery. Now mostly used in zoology and botany, as New World monkey.