once
\ɔ̃s\
The verdict
“once” is a moderately-common French word, ranked #11,815 in French word frequency and used as a noun.
- #11,815
- frequency rank, French
- 4
- letters
- 4
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Unité de mesure de la masse (système impérial britannique avoirdupois), qui vaut 28,3495231 grammes pour l'once commune → voir ounce. Ses symboles sont oz et ℥. L'once troy (troy ounce) équivaut po...
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 | once |
| Language | French |
| Part of speech | Noun |
| IPA | \ɔ̃s\ |
| Letters | 4 |
| Frequency rank | #11,815 |
| Misspellings tracked | 4 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “once” sits in French frequency
Spelling & Dictionary Insight
The French entry for once is 4 letters long, classified as a noun, and transcribed in the International Phonetic Alphabet as \ɔ̃s\. Corpus data places it at rank #11,815 in overall French word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 4 likely wrong-spelling variants for once, with forms such as "ocne", "oncce", and "onec". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 20 confusable-pair relationships, "ont", "one", "ose", and more, where similar look or sound leads writers to substitute one word for another in context.
No explicit etymology string is stored for this entry, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct French form is once, spelled O-N-C-E.
Definition
- 1Unité de mesure de la masse (système impérial britannique avoirdupois), qui vaut 28,3495231 grammes pour l'once commune → voir ounce. Ses symboles sont oz et ℥. L'once troy (troy ounce) équivaut pour sa part à 31,1034768 grammes.
- 2Ancien poids qui valait la douzième partie de la livre romaine.
- 3Ancienne unité de mesure de masse en France, qui valait 30,59 grammes. Elle formait la huitième partie du marc, ou la seizième partie de la livre de Paris. Parfois encore utilisée pour peser l’or par exemple.
- 4Petite quantité de quelque chose.
- 5Ancienne monnaie d’or ayant eu cours en Espagne et en Amérique latine.
This word in other languages
Common misspellings
Also misspelled as: ocne,oncce,onec,onnce
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of once - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.
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 “once”
The practical upshot for anyone who landed here from a spell-check.
- The one correct French spelling is O-N-C-E - every other letter order is a misspelling in standard orthography.
- Say it as \ɔ̃s\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “ont” - see the side-by-side comparison. once vs ont
- 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.