Definitions for radioˈreɪ diˌoʊ

This page provides all possible meanings and translations of the word radio

Random House Webster's College Dictionary

ra•di•oˈreɪ diˌoʊ(n.)(pl.)-di•os

  1. (n.)a system of telecommunication employing electromagnetic waves of a particular frequency range to transmit speech or other sound over long distances without the use of wires.

    Category: Radio and Television

  2. an apparatus for receiving or transmitting radio broadcasts.

    Category: Radio and Television

  3. a message transmitted by radio.

    Category: Radio and Television

  4. (adj.)pertaining to, used in, or sent by radio.

    Category: Radio and Television

  5. pertaining to electromagnetic radiation having frequencies in the range of approximately 10 kHz to 300,000 MHz:

    radio waves.

    Category: Physics

  6. (v.t.)to transmit (a message, music, etc.) by radio.

    Category: Radio and Television

  7. to send a message to (a person) by radio.

    Category: Radio and Television

  8. (v.i.)to transmit a message, music, etc., by radio.

    Category: Radio and Television

Origin of radio:

1910–15; shortening of radiotelegraph or radiotelegraphy


  1. a combining form with the meanings “radiant energy” (radiometer), “radio waves” (radiophotograph ), “emission of rays as a result of the breakup of atomic nuclei” (radioactivity), “x-rays” (radiotherapy).

    Category: Affix

Origin of radio-:

< F, comb. form repr. L radius beam

Princeton's WordNet

  1. radio, radiocommunication, wireless(noun)

    medium for communication

  2. radio receiver, receiving set, radio set, radio, tuner, wireless(noun)

    an electronic receiver that detects and demodulates and amplifies transmitted signals

  3. radio, wireless(adj)

    a communication system based on broadcasting electromagnetic waves

  4. radio(verb)

    indicating radiation or radioactivity


  5. radio(verb)

    transmit messages via radio waves

    "he radioed for help"

Kernerman English Learner's Dictionary

  1. radio(noun)ˈreɪ diˌoʊ

    a device for receiving sound broadcasts

    a news report I heard on the radio; a car radio

  2. radioˈreɪ diˌoʊ

    the broadcast of shows and information on a radio

    a radio announcer; He has worked in radio and television.


  1. radio(Noun)

    The technology that allows for the transmission of sound or other signals by modulation of electromagnetic waves.

  2. radio(Noun)

    A device that can capture (receive) the signal sent over radio waves and render the modulated signal as sound.

  3. radio(Noun)

    A device that can transmit radio signals.

  4. radio(Noun)

    The continuous broadcasting of sound recordings via the Internet in the style of traditional radio.

  5. radio(Verb)

    To use two-way radio to transmit (a message) (to another radio or other radio operator).

    I think the boat is sinking; we'd better radio for help. / I radioed him already. / Radio the coordinates this time. / OK. I radioed them the coordinates.

  6. radio(Verb)

    To order or assist (to a location), using telecommunications.

  7. Origin: From radius.


  1. Radio

    Radio is the wireless transmission of signals through free space by electromagnetic radiation of a frequency significantly below that of visible light, in the radio frequency range, from about 30 kHz to 300 GHz. These waves are called radio waves. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space. Information, such as sound, is carried by systematically changing some property of the radiated waves, such as their amplitude, frequency, phase, or pulse width. When radio waves strike an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form.

U.S. National Library of Medicine

  1. Radio

    The transmission and reception of electric impulses or signals by means of electric waves without a connecting wire, or the use of these waves for the wireless transmission of electric impulses into which sound is converted. (From Webster's 3d)

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'radio' in Spoken Corpus Frequency: #1221

  2. Written Corpus Frequency

    Rank popularity for the word 'radio' in Written Corpus Frequency: #982

  3. Nouns Frequency

    Rank popularity for the word 'radio' in Nouns Frequency: #509

Anagrams of radio

  1. aroid

Translations for radio

Kernerman English Multilingual Dictionary


(an apparatus for) the sending and receiving of human speech, music etc

a pocket radio; The concert is being broadcast on radio; I heard about it on the radio; (also adjective) a radio programme, radio waves.

Get even more translations for radio »


Find a translation for the radio definition in other languages:

Select another language:

Discuss these radio definitions with the community:


Use the citation below to add this definition to your bibliography:


"radio." STANDS4 LLC, 2014. Web. 19 Dec. 2014. <>.

Are we missing a good definition for radio?

The Web's Largest Resource for

Definitions & Translations

A Member Of The STANDS4 Network

Nearby & related entries:

Alternative searches for radio: