radio

1 noun 1

a) (C) a piece of electronic equipment which you use to listen to programmes that are broadcast, such as music and news: turn on the radio | listening to the radio in the car | on the radio (=broadcast on a radio): an interesting program on the radio this morning

b) the radio programmes that are broadcast on the radio, considered in general: I don't really listen to the radio much.

c) (U) the sending or receiving of programmes by radio: Radio was a powerful medium during the war years, keeping up people's morale.

2 (U) the activity of making and broadcasting programmes which can be heard on a radio: David Jason worked in radio before TV. | local/national radio (=programmes or companies broadcasting for a local area, or for the whole country) | radio programme/show/drama etc: John Peel's late-night radio show

3

a) (C) a piece of electronic equipment, for example on a plane or ship, which can send and receive spoken messages

b) (U) the sending or receiving of these messages: We've lost radio contact.

2 verb (I, T) to send a message using a radio: The ship radioed for help. | Radio London for permission to land.