éon

\e.ɔ̃\

/\e.ɔ̃\/ noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“éon” is uncommon French (frequency #88,257 among 1,805 “É” headwords), classed as a noun. The kind of spelling people second-guess.

#88,257
frequency rank, French
1,805
“É” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Plus grande unité de période de temps de l’échelle géologique.

Corpus desk

Index FR-eon · éon · French

éon · rank #88,257 · 0 variants · 0 confusables

  • FREQ-RARE #88,257
  • LEN-MID 3 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 1,805
  • PHOTO-FINISH éliminait

Nearest frequency peer: éliminait (-1 rank slots)

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.

Rangs de longue queue près de « éon »

Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court

corpus weight

What this shows Vue de longue queue: où « éon » se situe face à des rangs français aussi rares.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for éon
PropertyValue
Headwordéon
LanguageFrench
Part of speechNoun
IPA\e.ɔ̃\
Letters3
Frequency rank#88,257
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « éon » en français

De gauche à droite: le peu qui porte la parole quotidienne, puis la longue queue quasi invisible.éontombe dans cette queue de rareté:

#1#100#1K#10K#100K
← used constantlyrarely used →

L'axe est logarithmique: chaque tic marque environ dix fois moins de fréquence. Voisins rares de la même bande: « éliminait » (#88,256), « éparpillent » (#88,258), « élias » (#88,255). Parmi 1,805 lemmes en « É », « éon » est au #88,257. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

éon is uncommon French at frequency #88,257 among 1,805 “É” headwords, classed as anoun, transcribed \e.ɔ̃\. Rarity is why readers land here mid-draft. 2 senses are on record.

The misspelling generator found no plausible variants for éon, since its letter sequence doesn't invite the usual edit-distance slips. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.

Our source data has no etymology on file for this entry, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct French form is éon, spelled É-O-N.

Definition

  1. 1
    Plus grande unité de période de temps de l’échelle géologique.
  2. 2
    Entité éternelle et abstraite imaginée par les gnostiques.

Recorded use

Wiktionary examples

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

  1. L’éon du Phanérozoïque commence en concomitance des premières traces animales fossiles.
  2. […] Ptolémée, qui distingua les noms et le nombre des éons en substances personnelles, mais déterminées hors de Dieu, tandis que Valentin les avait renfermées dans l’essence de la divinité, sous le titre de sentiments, d’affections et de mouvements.

This word in other languages

eon(English)eón(Español)Äon(Deutsch)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 French corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "éon"?
"éon" is spelled É-O-N. The IPA pronunciation is \e.ɔ̃\.
What does "éon" mean?
As a noun, "éon" means: Plus grande unité de période de temps de l’échelle géologique.
How do you pronounce "éon"?
The IPA (International Phonetic Alphabet) transcription for "éon" is \e.ɔ̃\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "éon" come from?
"éon" is a French word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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.

Similar French words by spelling shape

Same letter count and similar misspelling depth for "éon", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 3 letters (nearest by frequency rank).

Zar#88,244ACB#88,271afo#88,286vre#88,222

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

Source: FrequencyWords open word-frequency list