noun
radio
RAY-dee-oh
noun
1
The technology of sending sound over distances using electromagnetic waves, or the broadcasting medium built on it.
"She listens to the radio every morning on her commute."
2
A device that receives and plays these broadcasts.
"He turned up the radio when his favorite song came on."
verb
1
To send a message using two-way radio equipment.
"The pilot radioed the tower for permission to land."
How to Use Radio
Learner’s notesIn plain EnglishBoth the broadcasting technology/medium and the device used to listen to it.
Common pairings
listen to the radio
radio station
radio signal
radio host
Word Forms
radioed past tense, radios plural, radios singular, radioes singular
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She listens to the _____ every morning on her commute.
Etymology
Shortened from "radiotelegraphy", itself built from "radio-" (relating to radiation/rays) plus "telegraphy".