router

n. person or thing that routes; hardware device which directs messages across a network to their correct destination (Computers); any of several power tools used to hollow out or furrow into a material

A router is a device that extracts the destination of a packet it receives, selects the best path to that destination, and forwards data packets to the next device along this path. They connect networks together; a LAN to a WAN for example, to access the Internet. Some units, like the Cisco 1800 (pictured), are available in both wired and wireless models.
See more at Wikipedia.org...

Noun
1. a worker who routes shipments for distribution and delivery
(hypernym) skilled worker, trained worker
2. (computer science) a device that forwards data packets between computer networks
(hypernym) device
(classification) computer science, computing
3. a power tool with a shaped cutter; used in carpentry for cutting grooves
(hypernym) power tool

(n.)
A plane with a hooked tool protruding far below the sole, for smoothing the bottom of a cavity.
  

(n.)
A plane made like a spokeshave, for working the inside edges of circular sashes.
  

In data communications, a functional unit used to interconnect two or more networks. Note 1: Routers operate at the network layer (layer 3) of the ISO Open Systems Interconnection--Reference Model. Note 2: The router reads the network layer address of all packets transmitted by a network, and forwards only those addressed to another network.