A race between teams in which each team member completes a part of the course and then passes a baton to the next runner. The school organized a 4x100 meter relay for the annual sports day.
An electrical device that opens or closes a circuit under the control of another electrical circuit. The technician replaced the faulty relay to restore power to the system.
A group of people or animals engaged in a task for a period of time and then replaced by a similar group. The firefighters worked in relays to control the blaze throughout the night.
A fresh set of horses or other animals posted at intervals along a route to relieve others. The mail coach was able to travel quickly thanks to the relays of horses stationed along the route.
The act or process of passing something along from one person or place to another. Efficient relay of information is crucial in emergency situations.
A broadcast of an event, program, or signal by radio or television, often transmitted live from the original location. Viewers around the world watched the live relay of the lunar landing.