radio */*/*/

I UK [ˈreɪdɪəʊ] / US [ˈreɪdɪoʊ] noun
Word forms "radio":
singular radio plural radios

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

Radio and television have had an enormous effect on people's lives.

He worked in radio for nearly 40 years.

BBC Radio 1

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

a car radio

turn on/off a radio:

Let's turn on the radio. It's time for the news.

b) the radio the programmes that are broadcast for people to listen to

I enjoy listening to the radio while I'm driving.

on the radio:

We heard a lot of flood warnings on the radio.

c) [only before noun] relating to radio

the radio news

an independent radio station

2)

a) [uncountable] a system of sending and receiving spoken messages by using electronic signals, for example the system used by the police or pilots

We remained in constant radio contact.

by radio:

We might be able to contact him by radio.

b) [countable] the piece of equipment used for sending or receiving spoken messages using electronic signals

a two-way radio

II UK [ˈreɪdɪəʊ] / US [ˈreɪdɪoʊ] verb [intransitive/transitive]
Word forms "radio":
present tense I/you/we/they radio he/she/it radios present participle radioing past tense radioed past participle radioed

to communicate with someone using a radio

The pilot radioed that he was having engine problems.

We radioed for help.