radio
adjective
ra·dio
| \ ˈrā-dē-ˌō
\
\
Definition of radio
(Entry 1 of 4)
1
: of, relating to, or operated by radiant energy
2
: of or relating to electric currents or phenomena (such as electromagnetic radiation) of frequencies between about 3000 hertz and 300 gigahertz
3a
: of, relating to, or used in radio or a radio set
b
: specializing in radio or associated with the radio industry
c(1)
: transmitted by radio
(2)
: making or participating in radio broadcasts
d
: controlled or directed by radio
radio
noun
plural radios
Definition of radio (Entry 2 of 4)
1a
: the wireless transmission and reception of electric impulses or signals by means of electromagnetic waves
b
: the use of these waves for the wireless transmission of electric impulses into which sound is converted
2
: a radio message
3
: a radio receiving set
4a
: a radio transmitting station
b
: a radio broadcasting organization
c
: the radio broadcasting industry
d
: communication by radio
radio
verb
radioed;
radioing;
radios
Definition of radio (Entry 3 of 4)
: to send or communicate something by radio
radio-
combining formDefinition of radio- (Entry 4 of 4)
— see radi-
Examples of radio in a Sentence
Noun
The news was sent by radio. I listen to the radio all the time. I heard the news on the radio. There's a problem with the car's radio. The radio was playing very loudly. The pilot's radio wasn't working.Verb
The police radioed for backup. The stranded sailors were radioing for help. The pilot radioed in to the control tower. The police radioed a report back to the station. They radioed the Coast Guard for help.
Recent Examples on the Web: Noun
The master of ceremonies will be Carl DeMaio, KOGO radio personality. — San Diego Union-Tribune, "‘Newcomers’ visit Pendleton’s Mechanized Museum....'Take a Swing for Seniors’ raises $180K," 5 Sep. 2019 Zambian radio stations are banning South African music. — David Meyer, Fortune, "Arson, Looting and Xenophobic Attacks: Why Tension Is Rising Between Africa’s 2 Biggest Economies," 5 Sep. 2019 In the event of an evacuation, local radio stations, including Georgia Public Broadcasting stations, will offer latest updates. — Brian O'shea, ajc, "Hurricane Dorian: Do you live in a hurricane evacuation zone?," 2 Sep. 2019 The accident occurred just before 1 a.m. on Mulholland Highway, according to a report of collision filed by California Highway Patrol and obtained by the radio station KNX1070. — Rachel Yang, EW.com, "Kevin Hart suffers major injuries following car accident: Report," 1 Sep. 2019 The country’s domestically owned television and radio stations are nearly all pro-government. — The Economist, "How Viktor Orban hollowed out Hungary’s democracy," 29 Aug. 2019 The podcasts are produced by nonprofit radio station X-RAY FM. — oregonlive, "New podcasts about Portland’s buildings let you learn as you walk the neighborhoods," 29 Aug. 2019 The news anchors and radio personalities seem positively giddy about the prospect of broadcasting for 12 days with a live audience. — Bulletin Board, Twin Cities, "Sunday Bulletin Board: Step right up, for your ‘potentially gut-churning pickled, spiced, sauced, cheese-covered, and deep-fried whatever’!," 25 Aug. 2019 On top of the 209 vivid rooms with record players and kombucha in the minibars, Eaton has a radio station that broadcasts on issues like equality, as well as seminar spaces holding talks on urban development. — Erin Florio, Condé Nast Traveler, "Why Hotels in the U.S. Are Better Than Ever," 23 Aug. 2019Recent Examples on the Web: Verb
An officer assigned to the unit immediately radioed for assistance and responders secured the area. — Cynthia Fernandez, BostonGlobe.com, "Five correctional officers injured in prison assault," 27 Aug. 2019 Within seconds, the motor vehicle stop erupted into a firefight, as Moye radioed for backup. — Los Angeles Times, "Riverside shootout between cop doing his ‘dream job’ and troubled felon ends in heartbreak," 14 Aug. 2019 The owner ran out after the truck, eventually getting the attention of a Ledyard police officer who radioed the information in. — Nicholas Rondinone, courant.com, "State Police: Pair crash stolen car, flee, steal second vehicle and crash again into van carrying pregnant mother, children," 4 Aug. 2019 The pilot radioed the tarmac to report the incident, according to the airline. — Bukola Adebayo, CNN, "Man jumps on plane wing as it prepares for takeoff," 19 July 2019 Fallon plays the Dustin in all this, radioing over to Colbert, our Suzie of this sketch, to wish him good luck on his late-night talk show return. — Nick Romano, EW.com, "Jimmy Fallon, Stephen Colbert recreate NeverEnding Story moment from Stranger Things," 16 July 2019 The cost may be worth it if the next-generation minefield can also radio back when it’s been tampered with or when a mine has detonated. — Kyle Mizokami, Popular Mechanics, "The U.S. Army Is Building a Smarter Land Mine," 16 July 2019 Relyea stepped back and radioed in that the man had a knife and asking for additional units, the report read. — Nicholas Rondinone, courant.com, "Danbury officer, under investigation for police shooting this month, cleared in deadly 2018 shooting," 12 July 2019 The agent radioed his colleagues to look out for the black BMW, and in a matter of minutes the Marines were pulled over and asked for papers. — Meagan Flynn, Anchorage Daily News, "Two active-duty US Marines allegedly smuggled undocumented Mexican immigrants," 9 July 2019These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radio.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for radio
radio
nounEnglish Language Learners Definition of radio
(Entry 1 of 2)
: the system or process that is used for sending and receiving signals through the air without using wires
: programs that are broadcast by radio
: a device that is used to receive the signals that are broadcast by radio
radio
verbEnglish Language Learners Definition of radio (Entry 2 of 2)
: to send a message to someone by radio
See the full definition for radio in the English Language Learners Dictionary
radio
noun
ra·dio
| \ ˈrā-dē-ˌō
\
\
plural radios
Kids Definition of radio
(Entry 1 of 3)
1
: the process that is used for sending or receiving signals by means of electromagnetic waves without a connecting wire