Relighting a fire is the process of reigniting a flame that has gone out. Rekindling a fire is a common practice used to revive a flame that has been extinguished. It can be done by adding fuel, such as wood or coal, and using a match or lighter to ignite it. The process of relighting a fire is often used in outdoor activities, such as camping, and in emergency situations, such as when a fire needs to be restarted quickly.