un à un

\œ̃.n‿a œ̃\

/\œ̃.n‿a œ̃\/ adv

The verdict

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

Unranked
below top-frequency French
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - L’un après l’autre et un seul à la fois.

Corpus desk

Index FR-un-a-un · un à un · French

un à un · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "U" 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 un à un
PropertyValue
Headwordun à un
LanguageFrench
Part of speechAdverb
IPA\œ̃.n‿a œ̃\
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

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

un à unreste 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

un à un is uncommon French outside the top frequency list, classed as anadverb, transcribed \œ̃.n‿a œ̃\. Rarity is why readers land here mid-draft. Gloss: "L’un après l’autre et un seul à la fois.".

un à un doesn't appear in our generated misspelling index, which points to an orthography that plays by predictable French rules. It is not paired with a close-neighbour confusable in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.

This entry's etymology isn't recorded, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct French form is un à un, spelled U-N- -À- -U-N.

Definition

  1. 1
    L’un après l’autre et un seul à la fois.

Recorded use

Wiktionary examples

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

  1. Enfin le moindre accessoire y était en harmonie avec l’affreuse vieille au nez crochu, à la face pâle et vêtue de haillons décents qui dit aux consultants de s’asseoir en leur apprenant qu’on n’entrait que un à un chez MADAME.
  2. […], puis, à travers une éclaircie, nous reconnaissons des montagnes qui se découvrent une à une ; […].

Synonyms

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 "un à un"?
"un à un" is spelled U-N- -À- -U-N. The IPA pronunciation is \œ̃.n‿a œ̃\.
What does "un à un" mean?
As an adverb, "un à un" means: L’un après l’autre et un seul à la fois.
How do you pronounce "un à un"?
The IPA (International Phonetic Alphabet) transcription for "un à un" is \œ̃.n‿a œ̃\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "un à un" come from?
"un à un" 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.

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

Source: FrequencyWords open word-frequency list