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radio - definition and synonyms


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noun radio pronunciation in American English /ˈreɪdioʊ/
Word Forms
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  1. 1
    [uncountable] a system of broadcasting information and programs that people can listen to

    He worked in radio for nearly 40 years.

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

    1. a.
      [countable] a piece of equipment that you use for listening to radio programs

      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 programs 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

  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
    by radio:

    We might be able to contact him by radio.

    Synonyms and related words

sea lion

in an online conversation, repeatedly asking a person questions which suggest that you are interested in what they are talking about, but are actually intended to annoy them

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