Relay link is a term used in technology that refers to a communication channel between two devices or networks that facilitates the transmission of information or data. However, there are several synonyms for relay link, such as a bridge link, hop link, a jump link, or a forwarding link. These synonyms are often used interchangeably to describe the same concept of a connection that acts as a mediator. A relay link is used in various applications ranging from internet connectivity to ham radio communication, and its synonyms embody the essence of the channel's function. In summary, relay link, bridge link, hop link, jump link, and forwarding link are all synonyms for the same thing - a communication channel.