Which to use
“do” and “duc” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #2,819
- “do” frequency rank
- #2,118
- “duc” frequency rank
- 4937
- confusion score
Side-by-Side Comparison
| Feature | do | duc |
|---|---|---|
| Definition | Première note de la gamme. | Titre qui était le plus élevé parmi l’ancienne noblesse de France et de quelques autres États. |
Where the eye mixes do and duc
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses do with duc
A purely visual mix-up. do (\do\) and duc (\dyk\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 4937, derived from the frequency rank of both members and their visual similarity.
do is recorded at frequency rank #2,819, classified as anoun, pronounced \do\. 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 4937, this pair ranks #430,317 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of do vs duc
Shared letters: d. Private to "do": o. Private to "duc": cu.
"do" · 2 letters · shape CV · "duc" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "do" for "duc" ever safe?
In ordinary French text, does "do" or "duc" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "do" 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 #430,317 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "do" and "duc" also get mixed up with nearby pairs, the highest-scored neighbour is "DCI vs do". Nearby pair
Confusion rank #430,317 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.