airspace alentours ambience ambit approach approximation area belt borderlands circle circuit circumambiencies circumjacencies circumstances closeness compass confines context continental shelf convergence corridor country department district division entourage environing circumstances environment environs foreground gestalt ground habitat heartland hinterland immediacy immediate foreground land milieu nearness neighborhood nighness offshore rights outposts outskirts part parts perimeter periphery place precinct precincts premises propinquity proximity quarter region salient section situation soil space suburbs surroundings terrain territory three-mile limit total environment twelve-mile limit vicinage vicinity zone