English Reference

Word

radio

Phoneticsra·dio

US/ˈɹeɪdiˌoʊ/

UK/ɹˈeɪdɪˌəʊ/

Definitions

01the technology

A2 · Elementary Uncountable noun Science

n. the technology used to send sound or signals through the air using waves.

n. the technology of signalling and communicating using radio waves; uncountable in this abstract sense.

“The invention of radio changed how people received news in the early twentieth century.”

“Early pioneers in radio experimented with various frequencies before the medium was regulated for commercial broadcasting.”

02the device

A1 · Beginner Countable noun

n. a piece of equipment you use to listen to music, news, or programs.

n. an electronic receiver that detects and demodulates radio frequency signals into audible sound.

“He likes to listen to the radio while he is driving to work.”

“She kept a battery-powered radio in the kitchen to stay informed during the frequent power outages in the winter.”

Synonyms

03internet streaming

B1 · Intermediate Uncountable noun Computing

n. continuous music or talk programs played over the internet.

n. the continuous streaming of audio content via the internet, mimicking the format of traditional broadcast radio.

“I usually listen to internet radio while I am studying at my computer.”

“The rise of personalized internet radio has significantly disrupted the advertising revenue of traditional FM stations.”

Synonyms

streamingwebcast

04to send a message

B1 · Intermediate

v. to send a message to someone using a two-way radio signal.

v. to transmit a message or communicate with a specific recipient using a radiotelegraphic or radiotelephonic system.

“The pilot had to radio the airport to ask for permission to land.”

“The stranded hikers managed to radio for assistance just before their handheld device ran out of power.”

Usage

The verb is often used with 'for' when requesting help.

Collocations

Common phrases and expressions where native English speakers use the word “radio” in context.

01. radio station 02. radio waves 03. radio signals 04. radio telescope 05. radio telescopes

Related words

Domain

Internet

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A1 MoversIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.2.0–3.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 1.0–1.50–23TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.120–224
Frequency
Very common
Level
A1 · BeginnerOxford
Updated

QR code

englishreference.com/q/radio

English Reference