See also: Wide Area Network
CIMM DEFINITION: A computer network that spans a relatively small area. Most LANs are confined to a single building or group of buildings, however, one LAN can be connected to other LANs over any distance via telephone lines and radio waves. (Source: http://www.webopedia.com)
2: A group of computers connected together (a network) at one physical location. (Source: IAB)