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radio - definition and synonyms


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noun radio pronunciation in British English /ˈreɪdiəʊ/
Word Forms
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  1. 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
    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.
    2. 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.
    3. c.
      [only before noun] relating to radio
      the radio news
      an independent radio station
  2. 2
    [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.
    Synonyms and related words


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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