DEFINITIONS

call sign

noun

call letters.

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Words nearby call sign

call on the carpet, call one's own, call option, call out, call rate, call sign, call slip, call someone's bluff, call the shots, call the tune, call to account

Origin of call sign

First recorded in 1915–20
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for call sign

call sign

noun

a group of letters and numbers identifying a radio transmitting station, esp an amateur radio stationCompare 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