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call sign

American

noun

call letters.

call sign British

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

Etymology

Origin of call sign

First recorded in 1915–20

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The president, played by a breathy, beleaguered Idris Elba and known only by his call sign, “Icon,” is of indeterminate party and ideology.

From Slate • Mar. 13, 2026

Before heading off to the front, Shaman, his army call sign, was manning the stand of the "Berkut Military-Sports Cossack Club" in the shopping centre.

From Barron's • Feb. 13, 2026

Near the town of Hulyaipole, which the Russians have partly taken, a Ukrainian surveillance-drone pilot known by his call sign Kuts was flying his drone back to base to recharge its battery recently.

From The Wall Street Journal • Feb. 9, 2026

His call sign is "Godfather" and he has a tough message for Europe and the US.

From BBC • Dec. 9, 2025

“A-Dawg. It’s my call sign on Screaming Eagles IV.”

From "Eleven" by Tom Rogers

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023