radéon

\ʁa.de.ɔ̃\

/\ʁa.de.ɔ̃\/ noun

The verdict

“radéon” is uncommon French (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency French
6
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Autre nom du radon.

Corpus desk

Index FR-radeon · radéon · French

radéon · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 6 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "R" thin
  • PHOTO-UNK Peer pending

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for radéon
PropertyValue
Headwordradéon
LanguageFrench
Part of speechNoun
IPA\ʁa.de.ɔ̃\
Letters6
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « radéon » en français

radéonreste hors des 100.000 mots français les plus fréquents, dans la longue queue du vocabulaire technique, archaïque ou rare, là où le doute d'orthographe frappe.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

radéon is uncommon French outside the top frequency list, classed as anoun, transcribed \ʁa.de.ɔ̃\. Rarity is why readers land here mid-draft. Gloss: "Autre nom du radon.".

radéon doesn't appear in our generated misspelling index, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

This headword's origin isn't recorded in our source data, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct French form is radéon, spelled R-A-D-É-O-N.

Definition

  1. 1
    Autre nom du radon.

Recorded use

Wiktionary example

These source excerpts show how radéon appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Je ne puis m’empècher de suggérer, si incertain que cela puisse paraître, que la même loi générale qui régit, les réactions chimiques ou les phosphorescences atomiques, s’étend peut-être aux phénomènes de la radioactivité. On sait que ces phénomènes accompagnent des «transmutations spontanées» de certains corps «simples». Par exemple, le radium se détruit…

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "radéon"?
"radéon" is spelled R-A-D-É-O-N. The IPA pronunciation is \ʁa.de.ɔ̃\.
What does "radéon" mean?
As a noun, "radéon" means: Autre nom du radon.
How do you pronounce "radéon"?
The IPA (International Phonetic Alphabet) transcription for "radéon" is \ʁa.de.ɔ̃\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "radéon" come from?
"radéon" is a French word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list