éon

/ˈɛ.õ/

//ˈɛ.õ// noun

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

The verdict

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

Unranked
below top-frequency Portuguese
3
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - eternidade, período de tempo não mensurável

Key facts for éon
PropertyValue
Headwordéon
LanguagePortuguese
Part of speechNoun
IPA/ˈɛ.õ/
Letters3
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “éon” sits in Portuguese frequency

éon falls outside the top-100,000 ranked Portuguese words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

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

Rare enough to double-check

éon is uncommon Portuguese outside the top frequency list, classed as anoun, transcribed /ˈɛ.õ/. Rarity is why readers land here mid-draft. 2 senses are on record.

No generated misspelling entries exist for éon in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. We don't track a confusable pairing for this entry, which tends to mean the word is visually distinctive enough to stand on its own.

No borrowing history is documented for this entry, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct Portuguese form is éon, spelled É-O-N.

Definition

  1. 1
    eternidade, período de tempo não mensurável
  2. 2
    maior unidade de tempo geológico, que subdivide-se em eras

Synonyms

eonaeon

This word in other languages

eon(English)eón(Español)éon(Français)Äon(Deutsch)

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 "éon"?
"éon" is spelled É-O-N. The IPA pronunciation is /ˈɛ.õ/.
What does "éon" mean?
As a noun, "éon" means: eternidade, período de tempo não mensurável
How do you pronounce "éon"?
The IPA (International Phonetic Alphabet) transcription for "éon" is /ˈɛ.õ/. 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 Portuguese 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.

Using “éon”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct Portuguese spelling is É-O-N - every other letter order is a misspelling in standard orthography.
  • Say it as /ˈɛ.õ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more Portuguese words and confusable pairs in the same reference. Portuguese words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list