call-signal

call-signal

A radio operator sends a call-signal to identify his station.

Definition
  1. Noun:
    • A signal used for identification or communication (especially in radio or telecommunications): "call-signal" refers to a distinctive sequence of letters, numbers, or sounds assigned to a broadcasting station, ship, aircraft, or other entity to identify it during transmissions.
Usage Examples
  • (The identifying signal helped avoid collisions.)
  • (The specific signal indicated which station was communicating.)
  • (The signal served as an identifier for listeners.)
Advanced Usage

  • "to send a call-signal": to transmit a specific identifying signal.

    • The distress call-signal was sent immediately after the engine failure. (The emergency identifier was broadcast.)

  • "to respond to a call-signal": to acknowledge or reply using an assigned identifier.

    • The submarine responded to the naval base's call-signal with its own code. (The submarine confirmed its identity.)
Variants and Related Words

  • Call sign (n): a less formal variant of "call-signal," used especially in aviation and amateur radio.

    • The pilot's call sign was "Eagle One." (The pilot's identifying code.)

  • Signal (n): a general term for any transmitted indication.

    • The weak signal made it hard to hear the call-signal. (The transmitted message was faint.)
Synonyms
  • Identifier: a mark or code that distinguishes one entity from another.
  • Code: a system of words, letters, or numbers used for secret or efficient communication.
  • Designation: a name or label assigned for identification.
Related Idioms
  • To get the call: to be selected or summoned (not directly using "call-signal," but related to the concept of being identified).
    • He got the call to join the rescue team. (He was chosen and notified.)
Phrasal Verbs
  • Call out: to shout or announce loudly, often to attract attention (related to the idea of signaling).
    • The guard called out the call-signal to the approaching vehicle. (He announced the identifier loudly.)

Note: "Call-signal" is a compound noun primarily used in technical or formal contexts (e.g., maritime, aviation, military, or amateur radio). It is less common in everyday speech, where "call sign" is often preferred.