Which to use
“dir” is a pronoun and “duc” is a noun - they look or sound alike but fill different roles in a sentence.
- #8,530
- “dir” frequency rank
- #2,118
- “duc” frequency rank
- 10648
- confusion score
Side-by-Side Comparison
| Feature | dir | duc |
|---|---|---|
| Definition | Toi : deuxième personne du singulier au datif. | Titre qui était le plus élevé parmi l’ancienne noblesse de France et de quelques autres États. |
Where the eye mixes dir and duc
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses dir with duc
These two trip readers on the page rather than in the ear: dir is \diːɐ̯\ while duc is \dyk\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (pronoun vs noun), which is usually the fastest check. Our composite confusion score for this pair is 10648, derived from the frequency rank of both members and their visual similarity.
dir is recorded at frequency rank #8,530, classified as apron, pronounced \diːɐ̯\. duc is at rank #2,118, tagged as anoun, pronounced \dyk\.
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 10648, this pair ranks #412,175 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of dir vs duc
Shared letters: d. Private to "dir": ir. Private to "duc": cu.
"dir" · 3 letters · shape CVC · "duc" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "dir" for "duc" ever safe?
In ordinary French text, does "dir" or "duc" show up more?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "dir" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "duc" - compare definitions side by side with the headword page. Word entry
- This pair ranks #412,175 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "dir" and "duc" also get mixed up with nearby pairs, the highest-scored neighbour is "DCI vs dir". Nearby pair
Confusion rank #412,175 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.