Semaphore: meaning, definitions and examples

communication signaling

A semaphore is a visual signaling system that uses flags, lights, or mechanical devices to convey information over a distance. Historically, it is used in maritime contexts to communicate between ships or between a ship and the shore. The flags are positioned in different arrangements to represent different letters, numbers, or messages. Semaphore systems can also be found in railways to control train movements. Its simplicity and effectiveness make it a crucial tool in situations where other communication forms are unavailable.

flag system, indicator, signal.

Examples of usage

• The ship used semaphore to signal its arrival.

• The railway station relied on semaphore signals for directing trains.

• The scouts employed semaphore flags to send messages.

• During the fog, the crew communicated with semaphore.

• The military utilized semaphore for silent communication.