A system of transmitting and receiving electromagnetic waves of radio frequency, especially those carrying sound messages. noun
She listens to the news on the radio every morning.
The radio was invented in the late 19th century.
A device that receives radio waves and converts them into sound or other signals. noun
He bought a new radio for his car.
The old radio in the living room still works perfectly.
The broadcasting of programs for the public to listen to, by sending out signals from a transmitter. noun
She has a job in radio broadcasting.
The radio station plays a mix of music and talk shows.
To communicate or send a message by radio. verb
The pilot radioed the control tower for landing instructions.
They radioed for help when their boat started taking on water.