S: (n) region (a large indefinite location on the surface of the Earth) "penguins inhabit the polar regions"
S: (n) area, country (a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)) "it was a mountainous area"; "Bible country"
S: (n) field (somewhere (away from a studio or office or library or laboratory) where practical work is done or data is collected) "anthropologists do much of their work in the field"
S: (n) testing ground, laboratory (a region resembling a laboratory inasmuch as it offers opportunities for observation and practice and experimentation) "the new nation is a testing ground for socioeconomic theories"; "Pakistan is a laboratory for studying the use of American troops to combat terrorism"
S: (n) Old World (the regions of the world that were known to Europeans before the discovery of the Americas)
S: (n) Far East (a popular expression for the countries of eastern Asia (usually including China and Mongolia and Taiwan and Japan and Korea and Indochina and eastern Siberia))
S: (n) West, Occident (the countries of (originally) Europe and (now including) North America and South America)