Signal

In maritime context, a signal is a visual or audible message used to communicate between vessels or between a vessel and shore. Signals can be made using flags, lights, horns, or other means. Signals are used to convey important information such as a vessel's position, intentions, or distress. The International Code of Signals is a standardized system of signals used by ships and other maritime entities to communicate with each other. Signals are an essential part of safe navigation and are used to avoid collisions and ensure the safety of all vessels at sea.
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