noun: relay; plural noun: relays
  1. a group of people or animals engaged in a task or activity for a period of time and then replaced by a similar group.
    “the wagons were pulled by relays of horses”
    • a race between teams of runners, each team member in turn covering part of the total distance.

      “a 550-metre relay race”

  2. an electrical device, typically incorporating an electromagnet, which is activated by a current or signal in one circuit to open or close another circuit.

  3. a device to receive, reinforce, and retransmit a radio or television signal.
    “TV transmitters and relay stations”
    • a signal or broadcast transmitted by a relay.
      “a relay of a performance live from the concert hall”


  1. receive and pass on (information or a message).
    “He intended to relay everything he had learned”