C1
\se.œ̃\
The verdict
“C1” is a moderately-common French word, ranked #12,528 in French word frequency and used as a noun.
- #12,528
- frequency rank, French
- 2
- letters
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Niveau de langue correspondant à un niveau expérimenté (autonome) : personne capable de comprendre des textes longs et exigeants et saisir des significations implicites ; s’exprimer spontanément et...
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | C1 |
| Language | French |
| Part of speech | Noun |
| IPA | \se.œ̃\ |
| Letters | 2 |
| Frequency rank | #12,528 |
| Misspellings tracked | 0 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “C1” sits in French frequency
Spelling & Dictionary Insight
The French entry for C1 is 2 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as \se.œ̃\. Corpus data places it at rank #12,528 in overall French word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Niveau de langue correspondant à un niveau expérimenté (autonome) : personne capable de comprendre des textes longs et exigeants et saisir des significations implicites ; s’exprimer spontanément et...".
We couldn't generate a plausible misspelling set for C1, since its letter sequence doesn't invite the usual edit-distance slips. It also participates in 20 confusable-pair relationships, "ce", "ça", "ci", and more, where similar look or sound leads writers to substitute one word for another in context.
This entry carries no recorded etymology, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct French form is C1, spelled C-1.
Definition
- 1Niveau de langue correspondant à un niveau expérimenté (autonome) : personne capable de comprendre des textes longs et exigeants et saisir des significations implicites ; s’exprimer spontanément et couramment sans trop devoir chercher ses mots ; utiliser la langue de façon efficace et souple dans la vie sociale, professionnelle ou académique ; s’exprimer sur des sujets complexes de façon claire et bien structurée et manifester son contrôle des outils linguistiques d'organisation, d’articulation et de cohésion du discours.
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
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Using “C1”
The practical upshot for anyone who landed here from a spell-check.
- The one correct French spelling is C-1 - every other letter order is a misspelling in standard orthography.
- Say it as \se.œ̃\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “ce” - see the side-by-side comparison. C1 vs ce
- Browse more French words and confusable pairs in the same reference. French 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.