en un éclair

\ɑ̃ œ̃ e.klɛʁ\

/\ɑ̃ œ̃ e.klɛʁ\/ adv

The verdict

“en un éclair” is uncommon French (outside the top frequency list), classed as an adverb. The kind of spelling people second-guess.

Unranked
below top-frequency French
12
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Très rapidement.

Corpus desk

Index FR-en-un-eclair · en un éclair · French

en un éclair · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 12 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "E" 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 en un éclair
PropertyValue
Headworden un éclair
LanguageFrench
Part of speechAdverb
IPA\ɑ̃ œ̃ e.klɛʁ\
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « en un éclair » en français

en un éclairsiège au-delà des 100.000 formes les plus fréquentes du français, dans la traîne du lexique spécialisé ou peu usité.

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

Rare enough to double-check

en un éclair is uncommon French outside the top frequency list, classed as anadverb, transcribed \ɑ̃ œ̃ e.klɛʁ\. Rarity is why readers land here mid-draft. Gloss: "Très rapidement.".

Our edit-distance generator produced no likely misspellings for en un éclair, typically a sign the spelling maps closely to how the word sounds. We don't track a confusable pairing for this entry, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

No documented word history exists for this headword, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct French form is en un éclair, spelled E-N- -U-N- -É-C-L-A-I-R.

Definition

  1. 1
    Très rapidement.

Recorded use

Wiktionary examples

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

  1. La crosse du pouchka est sortie de son ceinturon et a volé en un éclair sur le crâne de Nono.
  2. De ce point de vue, plus de choses ont changé ces cinq dernières années qu’au cours du siècle passé, notamment en France, où la scène cocktail a muté en un éclair.

This word in other languages

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 "en un éclair"?
"en un éclair" is spelled E-N- -U-N- -É-C-L-A-I-R. The IPA pronunciation is \ɑ̃ œ̃ e.klɛʁ\.
What does "en un éclair" mean?
As an adverb, "en un éclair" means: Très rapidement.
How do you pronounce "en un éclair"?
The IPA (International Phonetic Alphabet) transcription for "en un éclair" is \ɑ̃ œ̃ e.klɛʁ\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "en un éclair" come from?
"en un éclair" 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