semaphore

The sailors communicated using semaphore flags.

He signaled to the helicopter with semaphore.

Semaphore is a system of sending messages by holding flags or using lights.

The semaphore code was used to send important messages during battles.

Semaphore is an effective way to communicate over long distances.

The scouts used semaphore to relay information back to their base.

Semaphore flags are still used in some maritime operations today.

Learning semaphore is an important skill for naval personnel.

The semaphore alphabet consists of different flag positions representing letters.

Semaphore can be a lifesaving method of communication in emergency situations.