noun Download 🔗Share A combination of letters and numbers used to identify a radio or television station. Examples : "My grandmother's radio station uses the callsign KLR-10. " media communication technology electronics signal Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share Any combination of characters or pronounceable words, which identifies a communication facility, a command, an authority, an activity, or a unit; used primarily for establishing and maintaining communications. Also called CS. Examples : "During the emergency drill, the principal used the callsign "Eagle One" to identify her office when communicating with teachers over the radio. " communication military technical signal unit organization Chat with AIVocabulary GamePractice Reading