distress flag
A "distress flag" is a signal used to indicate that someone is in trouble and needs help. It is often a brightly colored flag, such as orange or red, that can be easily seen from a distance. Distress flags are commonly used in maritime situations, where boats or ships may signal for assistance if they are in danger or experiencing emergencies.
In addition to maritime use, distress flags can also be employed in outdoor activities like hiking or camping. When someone is lost or injured, displaying a distress flag can alert nearby individuals or rescue teams to their situation, facilitating a quicker response and potential rescue.