relay

A new set of anything.

A competition between teams where members of a team take turns completing parts of a course or performing a certain action.

A track and field discipline where runners take turns in carrying a baton from start to finish. The most common events are 4×100 meter and 4×400 meter competitions.

An electrical actuator that allows a relatively small electrical voltage or current to control a larger voltage or current.

(rare) A new set of hounds.

(historical) A new set of horses kept along a specific route so that they can replace animals that are tired.

A series of vehicles travelling in sequence.

To pass on or transfer (information).

(no longer used) To release a new set of hounds.

(no longer used) To place (people or horses) in relays, such that one can take over from another.

(no longer used) To take on a new relay of horses; to change horses.