call sign

noun

Definition of call sign

:the combination of identifying letters, letters and numbers, or words assigned to an operator, office, activity, vehicle, or station for use in communication (as in the address of a message sent by radio)

First Known Use of call sign

1907


CALL SIGN Defined for English Language Learners

call sign

noun

Definition of call sign for English Language Learners

  • : a combination of letters and numbers that is used to identify someone or something in a radio broadcast


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