Which to use
“duc” and “dupe” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #2,118
- “duc” frequency rank
- #18,992
- “dupe” frequency rank
- 21110
- confusion score
Side-by-Side Comparison
| Feature | duc | dupe |
|---|---|---|
| Definition | Titre qui était le plus élevé parmi l’ancienne noblesse de France et de quelques autres États. | Celui, celle qui a été trompé, ou qui est facile à tromper. |
Where the eye mixes duc and dupe
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses duc with dupe
A purely visual mix-up. duc (\dyk\) and dupe (\dyp\) 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 21110, derived from the frequency rank of both members and their visual similarity.
duc is recorded at frequency rank #2,118, classified as anoun, pronounced \dyk\. dupe is at rank #18,992, tagged as anoun, pronounced \dyp\.
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 21110, this pair ranks #364,803 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of duc vs dupe
Shared letters: du. Private to "duc": c. Private to "dupe": ep.
"duc" · 3 letters · shape CVC · "dupe" · 4 letters · shape CVCV
Known mistypes of this pair
- dupe ← ddupe · dpue · duep · duppe · udpe
Frequently Asked Questions
Do "duc" and "dupe" mean the same thing in a sentence?
Frequency check: "duc" vs "dupe" - which ranks higher?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "duc" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "dupe" - compare definitions side by side with the headword page. Word entry
- This pair ranks #364,803 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "duc" and "dupe" also get mixed up with nearby pairs, the highest-scored neighbour is "dupe vs dust". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #364,803 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.