call sign


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)

Examples of call sign in a Sentence

Recent Examples on the Web

By July or August, Reber called Marsala at work with the news the station was approved and in November, the WLTL call sign was given a green light. Jesse Wright,, "Former DJs, managers help celebrate 50 years of high school radio station WLTL," 22 Apr. 2018 Both men carried out two earlier spacewalks together in March and May. For identification, Arnold, call sign EV-1, is wearing a suit with red stripes and is using helmet camera No. William Harwood, CBS News, "Space station astronauts take spacewalk to install cameras," 14 June 2018 She was not asked to elaborate one why he was given that call sign. Pauline Repard,, "Retrial begins on Navy commader attempted rape case," 29 Mar. 2018 Mattis’s call sign in the Marines is Chaos, and many people assume this is another allusion to battlefield mayhem, like Mad Dog. Robert F. Worth, New York Times, "Can Jim Mattis Hold the Line in Trump’s ‘War Cabinet’?," 26 Mar. 2018 Marsala said the boys initially considered the call sign WLTH. Jesse Wright,, "Former DJs, managers help celebrate 50 years of high school radio station WLTL," 22 Apr. 2018 She was even given an official call sign, a nickname used by mission control when talking to their talent. Alyson Krueger, Teen Vogue, "17-Year-Old Alyssa Carson Wants to Be the First Person on Mars," 21 Mar. 2018 The Astros also met with Darvish; the Yankees and Dodgers remain in the mix, and the Twins have called signing him a priority. David Haugh,, "Torn between Arrieta and Darvish? For Cubs, the difference is Yu.," 21 Dec. 2017 The crew members asked to be identified only by their call signs or first names for security reasons. Eric Schmitt, New York Times, "Hunting Taliban and Islamic State Fighters, From 20,000 Feet," 11 Dec. 2017

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.

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First Known Use of call sign

1907, in the meaning defined above

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Time Traveler for call sign

The first known use of call sign was in 1907

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More Definitions for call sign

call sign


English Language Learners Definition of call sign

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

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