Definitions of link:

• noun:   a fastener that serves to join or link

  Example: "The walls are held together with metal links placed in the wet mortar during construction"

• noun:   an interconnecting circuit between two or more locations for the purpose of transmitting and receiving data
• noun:   (computing) an instruction that connects one part of a program or an element on a list to another program or list
• noun:   a unit of length equal to 1/100 of a chain
• noun:   the means of connection between things linked in series
• noun:   a two-way radio communication system (usually microwave); part of a more extensive telecommunication network
• noun:   a channel for communication between groups
• noun:   the state of being connected
• noun:   a connecting shape
• verb:   be or become joined or united or linked

  Example: "The travelers linked up again at the airport"

• verb:   connect, fasten, or put together two or more pieces

  Example: "Link arms"

• verb:   link with or as with a yoke
• verb:   make a logical or causal connection
• name:  A surname (common: 1 in 12500 families; popularity rank in the U.S.: #1605)