What do we call a network whose elements may be separated by some distance? It usually involves two or more small networks and dedicated high-speed telephone lines.

WAN (Wide Area Network) connects networks over large geographical distances, typically using dedicated high-speed telephone lines or other communication links. A LAN covers a small area like a building, while WAN spans cities, countries, or continents. URL is an address format and World Wide Web is a service, not network types.