call sign

noun

call letters.

Origin of call sign

First recorded in 1915–20

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

British Dictionary definitions for call sign

call sign

noun

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