What is one who stand on guard and sounds an alert if something is wrong?

Answer 1

One who stands on guard and sounds an alert if something is wrong is often referred to as a "sentinel" or "watchman." Their primary role is to monitor an area for any signs of danger or irregularity and to notify others if a threat is detected. This responsibility is crucial in various contexts, such as military, security, or even in wildlife settings, where vigilance is necessary for safety.