Collins COBUILD Advanced Learner's English Dictionary - radio

(radios, radioing, radioed) Frequency: The word is one of the 700 most common words in English. 1. Radio is the broadcasting of programmes for the public to listen to, by sending out signals from a transmitter. The announcement was broadcast on radio and television. N-UNCOUNT: oft N n 2. You can refer to the programmes broadcast by radio stations as the radio. A lot of people tend to listen to the radio in the mornings... N-SING: the N 3. A radio is the piece of equipment that you use in order to listen to radio programmes. He sat down in the armchair and turned on the radio. N-COUNT 4. Radio is a system of sending sound over a distance by transmitting electrical signals. They are in twice daily radio contact with the rebel leader. N-UNCOUNT: oft N n 5. A radio is a piece of equipment that is used for sending and receiving messages. ...the young constable who managed to raise the alarm on his radio... N-COUNT 6. If you radio someone, you send a message to them by radio. The officer radioed for advice... A few minutes after take-off, the pilot radioed that a fire had broken out. VERB: V adv/prep, V that, also V n, V