the activity or industry of broadcasting sound programmes to the public, or similar programmes for employees, a device that receives radio signals and converts them into sounds that people can hear

on the radio, turn up the radio, box of radios

radio silence, radio waves, radio frequency

Formal and Informal Expressions of radio

In different contexts, you can replace 'radio' with suitable alternatives. In a more formal setting, 'broadcasting, transmission' is apt. In informal speech or writing, 'wireless, boom box' is a commonplace synonym.

radio: Explore its Definition & Usage

radio Definition

1the activity or industry of broadcasting sound programmes to the public, or similar programmes for employees
2a device that receives radio signals and converts them into sounds that people can hear

Using radio: Examples

Take a moment to familiarize yourself with how "radio" can be used in various situations through the following examples!

Example
I listen to the radio every morning.
Example
The radio station broadcasts news and music all day long.
Example
The car radio was playing my favorite song.
Example
The company uses radio communication to keep in touch with its employees.

radio Synonyms and Antonyms

Synonyms for radio

Idioms Using radio

on the radio
being broadcasted on the radio
Example
Their new song is playing on the radio right now.
turn up the radio
increase the volume of the radio
Example
Can you turn up the radio? I can't hear it very well.
box of radios
a situation where there are many different opinions or ideas
Example
The meeting turned into a box of radios with everyone talking at once.

Phrases with radio

radio silence
a period during which no radio transmissions are made, especially by military forces
Example
The soldiers were ordered to maintain radio silence until further notice.
radio waves
electromagnetic waves of a frequency used for long-distance communication
Example
Radio waves are used to transmit information from one place to another.
radio frequency
a range of electromagnetic frequencies used for communication or broadcasting
Example
The radio frequency for this station is 98.5 FM.

Origins of radio

from the prefix 'radi-' meaning 'radiant' or 'emitting rays'

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Summary: radio in Brief

The term 'radio' [ˈreɪdiəʊ] refers to the activity or industry of broadcasting sound programmes, or a device that receives radio signals. It is used for entertainment and communication purposes, such as listening to music or keeping in touch with employees. Phrases like 'radio silence' and 'radio waves' extend its usage, while idioms like 'on the radio' and 'turn up the radio' denote being broadcasted or increasing the volume. 'Box of radios' is an idiom for a situation with many different opinions.