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call sign
call sign
noun
- a group of letters and numbers identifying a radio transmitting station, esp an amateur radio station Compare call letters
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Word History and Origins
Origin of call sign1
First recorded in 1915–20
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Example Sentences
So Specialist BJ with the call sign of "Butter-Cup" sleep on and take your rest.
From The Daily Beast
Co-ordinates were not given and I checked the planetary co-ordinates with the call sign and the Communications List.
From Project Gutenberg
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