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radio

Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.

Letters

5 characters

Language

English

word origin

Source

Wiktionary

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Detailed reference entry for the English word "radio", 5-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Hunspell error dictionaries, and usage frequency ranked against the top 100,000 English words in the Wordfreq corpus. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "radio" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "radio" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

radio is aEnglishnoun. It means: The technology that allows for the transmission of sound or other signals by modulation of electromagnetic waves. Pronounced /ˈɹeɪdiˌəʊ/. It ranks #1,059 in English word frequency. Often confused with Rio and Rao.

Key facts for radio
PropertyValue
Headwordradio
LanguageEnglish
Part of speechNoun
IPA/ˈɹeɪdiˌəʊ/
Letters5
Frequency rank#1,059
Misspellings tracked6
Confusable pairs20
SourceWiktionary (kaikki.org)

Frequency rank visualization

Position of radio in English word frequency (lower rank = more common)

Source: Wordfreq corpus

Spelling & Dictionary Insight

The English entry for radio is 5 letters long, classified as anoun, and transcribed in the International Phonetic Alphabet as /ˈɹeɪdiˌəʊ/. Corpus data places it at rank #1,059 in overall English word frequency, indicating it appears regularly in written and spoken text.Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.

Our Hunspell-derived misspelling index lists 6 documented wrong-spelling variants for radio, with forms such as "ardio", "raddio", and "radoi". Each variant represents a distinct typo pattern that appears often enough in corpora to be worth flagging, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution.It also participates in 20 confusable-pair relationships, "Rio", "Rao", "rain", and more, where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Short for radiotelegraphy. Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is radio, spelled R-A-D-I-O, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    The technology that allows for the transmission of sound or other signals by modulation of electromagnetic waves.
  2. 2
    A device that can capture (receive) the signal sent over radio waves and render the modulated signal as sound.
  3. 3
    Any audio playing device, such as the on-board entertainment system in a car, usually including a radio receiver as well as the capability to play audio from recorded media; see also car radio.
  4. 4
    A device that can transmit radio signals.
  5. 5
    The continuous broadcasting of sound via the Internet in the style of traditional radio.

Etymology

Short for radiotelegraphy.

Synonyms

This word in other languages

Common misspellings

Also misspelled as: ardio,raddio,radoi,raido,rdaio,rradio

Misspelling Pattern Breakdown

Relative frequency of common misspelling types for radio

Misspelling Variants of "radio"

ardio5raddio6radoi5raido5rdaio5rradio6
Misspelling Variants of "radio"

Frequency rank: #1,059 in English

Frequently Asked Questions

How do you spell "radio"?
"radio" is spelled R-A-D-I-O. The IPA pronunciation is /ˈɹeɪdiˌəʊ/.
What does "radio" mean?
As a noun, "radio" means: The technology that allows for the transmission of sound or other signals by modulation of electromagnetic waves.
What words are commonly confused with "radio"?
"radio" is commonly confused with "Rio", "Rao", "rain". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "radio"?
The IPA (International Phonetic Alphabet) transcription for "radio" is /ˈɹeɪdiˌəʊ/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "radio"?
Short for radiotelegraphy. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Nearby English words

Other entries that begin with the letter R in our English index:

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Data Source: Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Frequency data from Wordfreq. Misspellings derived from Hunspell dictionaries.