Definition

Noun: A person who communicates or transmits information, instructions, or warnings using a system of signals, such as flags, lights, sounds, or gestures.

Examples

• Noun:
  • The army signaller used flags to send a message across the valley.
  • During the naval exercise, the signaller on the bridge communicated with other ships using a lamp.

Advanced Usage

• "To act as a signaller": To perform the role or duties of sending signals.
  • In the absence of radio equipment, one soldier had to act as the signaller for the unit.

Variants and Related Words

• Signal (noun/verb): A sign, gesture, or sound conveying information; to transmit such a sign.
  • The referee gave the signal to start the match.
• Signaling (noun): The action or process of sending signals.
  • The complex signaling between the ships prevented a collision.

Synonyms

• Signalman: A person employed to operate signals, especially on a railway.
• Communicator: A person who conveys information.

Related Phrases

• To signal for help: To send a signal requesting assistance.
  • The stranded hikers used a mirror to signal for help.

Noun

1. someone who communicates by signals