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)

Recent Examples of call sign from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'call sign.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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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