LAN
Local-area network (LAN)
A LAN connects devices in one area, such as a house or business. A LAN can be tiny (one user) or huge (thousands of users and devices). A LAN might be wired or wireless.
- Snippet from Wikipedia: Local area network
A local area network (LAN) is a computer network that interconnects computers within a single physical location, which could range from a home network with one user to a large network at a school or office building. Ethernet and Wi-Fi are the two most common technologies in use for local area networks; historical network technologies include ARCNET, Token Ring and AppleTalk.
A LAN contrasts a wide area network (WAN) which not only covers a larger geographic distance, but also generally involves leased telecommunication circuits.