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Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. See call letters.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A combination of letters and numbers used to identify a radio or television station.
  • n. Any combination of characters or pronounceable words, which identifies a communication facility, a command, an authority, an activity, or a unit; used primarily for establishing and maintaining communications. Also called CS. (JP 1-02 Department of Defense Dictionary of Military and Associated Terms.)

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  • Identifying moniker for radio communication between pilots and controlling agencies (or members of a flight formation). One of the best I've known amongst the fighter jocks: "fortune"; one of the worst: "rat".

    August 18, 2009