Definitions for Radio
ˈreɪ diˌoʊra·dio

Princeton's WordNet(5.00 / 2 votes)Rate this definition:

1. radio, radiocommunication, wirelessnoun

   medium for communication

2. radio receiver, receiving set, radio set, radio, tuner, wirelessnoun

   an electronic receiver that detects and demodulates and amplifies transmitted signals

3. radio, wirelessadjective

   a communication system based on broadcasting electromagnetic waves

4. radioverb

   indicating radiation or radioactivity

   "radiochemistry"

5. radioverb

   transmit messages via radio waves

   "he radioed for help"

Wiktionary(5.00 / 1 vote)Rate this definition:

1. radionoun

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

2. radionoun

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

3. radionoun

   A device that can transmit radio signals.

4. radionoun

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

5. radioverb

   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. radioverb

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

7. Etymology: From radius.

Wikipedia(0.00 / 0 votes)Rate this definition:

1. Radio

   Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves, and received by another antenna connected to a radio receiver. Radio is widely used in modern technology, in radio communication, radar, radio navigation, remote control, remote sensing, and other applications. In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking, and satellite communication, among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave by varying some aspect of the wave) in the transmitter. In radar, used to locate and track objects like aircraft, ships, spacecraft and missiles, a beam of radio waves emitted by a radar transmitter reflects off the target object, and the reflected waves reveal the object's location. In radio navigation systems such as GPS and VOR, a mobile receiver accepts radio signals from navigational radio beacons whose position is known, and by precisely measuring the arrival time of the radio waves the receiver can calculate its position on Earth. In wireless radio remote control devices like drones, garage door openers, and keyless entry systems, radio signals transmitted from a controller device control the actions of a remote device. Applications of radio waves that do not involve transmitting the waves significant distances, such as RF heating used in industrial processes and microwave ovens, and medical uses such as diathermy and MRI machines, are not usually called radio. The noun radio is also used to mean a broadcast radio receiver. The existence of radio waves was first proven by German physicist Heinrich Hertz on November 11, 1886. In the mid 1890s, building on techniques physicists were using to study electromagnetic waves, Guglielmo Marconi developed the first apparatus for long-distance radio communication, sending a wireless Morse Code message to a source over a kilometer away in 1895, and the first transatlantic signal on December 12, 1901. The first commercial radio broadcast was transmitted on November 2, 1920 when the live returns of the Harding-Cox presidential election were broadcast by Westinghouse Electric and Manufacturing Company in Pittsburgh, under the call sign KDKA.The emission of radio waves is regulated by law, coordinated by the International Telecommunication Union (ITU), which allocates frequency bands in the radio spectrum for different uses.

Freebase(3.83 / 6 votes)Rate this definition:

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(2.50 / 4 votes)Rate this definition:

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)

Suggested Resources(0.00 / 0 votes)Rate this definition:

1. radio

   Song lyrics by radio -- Explore a large variety of song lyrics performed by radio on the Lyrics.com website.

Matched Categories

1. • Communicate

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 for Radio »

1. aroid

2. doria

How to pronounce Radio?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say Radio in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Radio in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of Radio in Pythagorean Numerology is: 2

Examples of Radio in a Sentence

1. RJ Intindola:

   When I hear a certain song playing in the background, I think of you and a vision of your face, pervades my soul. When the second song plays, your sweet fragrance fills the air around me. The third song and her gentle hand caressing my face tingles my body covered with goosebumps. At the fourth song, I gently glide to the radio and turn it off. There’s no sense roaming in the darkened marred past.

2. President Tayyip Erdogan:

   Demonstrations are banned, talking is banned, criticizing the government is banned, even defending peace is considered terror propaganda, hundreds of opposition journalists are arrested, dozens of TV and radio channels are closed.

3. Joey Fortman:

   I think of how radio is able to filter out all the bad music content, you won't hear cuss words on the radio. But [ these platforms ] aren't regulated and parents are still just learning that.

4. Bob Seger:

   We've been really lucky. We've gotten a lot of airplay over the years. I guess people keep requesting our songs on the radio, because Lord knows I don't do a whole lot to promote myself.

5. Buzz Aldrin:

   In the radio blackout I opened the little plastic packages which contained bread and wine, i poured the wine into the chalice our church had given me. In the one-sixth gravity of the moon, the wine curled slowly and gracefully up the side of the cup. It was interesting to think that the very first liquid ever poured on the moon, and the first food eaten there, were communion elements.

Popularity rank by frequency of use