Which to use
“os” is a noun and “oui” is an adverb - they look or sound alike but fill different roles in a sentence.
- #2,632
- “os” frequency rank
- #132
- “oui” frequency rank
- 2764
- confusion score
Side-by-Side Comparison
| Feature | os | oui |
|---|---|---|
| Definition | Élément du squelette des animaux vertébrés, fait de ce tissu dur et calcifié. | Mot utilisé pour apporter une réponse affirmative ou marquer l'accord sur une proposition. Il s’emploie aussi au début d’une phrase qui ne répond pas à une question exprimée ou au cours d’une phrase, pour marquer ou accentuer le caractère affirmatif de cette phrase. Il s’emploie dans le discours direct en réponse à une interrogation. Il est alors seul ou joint à des adverbes qui renforcent l’affirmation comme certes, vraiment, etc. |
Where the eye mixes os and oui
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between os and oui
These two trip readers on the page rather than in the ear: os is \ɔs\ while oui is \wi\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 2764, derived from the frequency rank of both members and their visual similarity.
os is recorded at frequency rank #2,632, classified as anoun, pronounced \ɔs\. oui is at rank #132, tagged as anadv, pronounced \wi\.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 2764, this pair ranks #435,521 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of os vs oui
Shared letters: o. Private to "os": s. Private to "oui": iu.
"os" · 2 letters · shape VC · "oui" · 3 letters · shape VVV
Frequently Asked Questions
Do "os" and "oui" mean the same thing in a sentence?
Which is more common, "os" or "oui"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "os" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "oui" - compare definitions side by side with the headword page. Word entry
- This pair ranks #435,521 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "os" and "oui" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs os". Nearby pair
Confusion rank #435,521 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.