Word Pronunciation & Dictionary

radio-

Word Rarity Common

Frequency: Zipf frequency 5.01 in modern English

Syllables: ra-di-o-
IPA

6

Scrabble Score

5

Letters

3

Syllables

5

Unique Chars

Meaning

prefix

radiation, radioactive

prefix

radio (broadcasting)

prefix

prefix

Example Sentences

"e.g. radiotherapy, radioactinium, radiolucent"
"e.g. radiotelemetry, radioacoustics, radiotelegraph"
"e.g. radiobicipital"
"e.g. radiosymmetrical"

Etymology

Derived from Latin radius (“ray”). By surface analysis, clipping of radiation + -o-.

Origin

Source language: Latin

Word Breakdown

Root: radius

Inflected Forms

radi- (alternative) rad- (alternative)

Derived Forms

radioacoustics radioactinium radioactive radioactivity radioassay radiobicipital radiobioassay radiobiology radiobroadcast radiobromine radiocarbon radiocardiogram

Homonyms

radio

Questions

What does radio- mean?: radiation, radioactive
Where does radio- come from?: It is traced to Latin.

How to pronounce radio-

Open the pronunciation page — Open the Speakur entry for “radio-”.
Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
Play the audio — Click Play to hear reference audio for “radio-”.
Repeat and practice — Say “radio-” aloud, matching stress and vowels until it feels natural.