radio*/*/*/

[ˈreɪdiəʊ] noun I

1) [U] a system of broadcasting information and programmes that people can listen to

an independent radio station[/ex]

Radio and television have had an enormous effect on people's lives.[/ex]

She began her career in local radio.[/ex]

2) [C] a piece of equipment that you use for listening to radio programmes

a car radio[/ex]

Let's turn on the radio.[/ex]

3) the radio

[singular] programmes that are broadcast for people to listen to

Joe's listening to the radio.[/ex]

What's on the radio?[/ex]

4) [U] a system of sending and receiving spoken messages by using electronic signals

We remained in constant radio contact.[/ex]

5) [C] the piece of equipment that is used for sending or receiving spoken messages using electronic signals

a two-way radio[/ex]

II

verb [I/T]

radio [ˈreɪdiəʊ]

to communicate with someone using a radio