Call sign Definition & Meaning - Merriam-Webster
https://www.merriam-webster.com/dictionary/call%20sign
WEBcall sign. noun. : 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.
DA: 19 PA: 41 MOZ Rank: 8