call sign
noun
Origin of call sign
1First recorded in 1915–20
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How to use call sign in a sentence
This necessitated a lot of change of aircraft call signs, codes, radio frequencies, radar frequencies.
Warren Commission (8 of 26): Hearings Vol. VIII (of 15) | The President's Commission on the Assassination of President Kennedy
British Dictionary definitions for call sign
call sign
noun
a group of letters and numbers identifying a radio transmitting station, esp an amateur radio station: Compare call letters
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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