Which to use
“duff” and “duo” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #34,065
- “duff” frequency rank
- #3,839
- “duo” frequency rank
- 37904
- confusion score
Side-by-Side Comparison
| Feature | duff | duo |
|---|---|---|
| Definition | Pâte à gâteau. | Morceau de musique fait pour être chanté par deux voix ou exécuté par deux instruments. |
Where the eye mixes duff and duo
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses duff with duo
A purely visual mix-up. duff (\dʌf\) and duo (\dɥɔ\) 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 37904, derived from the frequency rank of both members and their visual similarity.
duff is recorded at frequency rank #34,065, classified as anoun, pronounced \dʌf\. duo is at rank #3,839, tagged as anoun, pronounced \dɥɔ\.
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 37904, this pair ranks #259,142 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of duff vs duo
Shared letters: du. Private to "duff": f. Private to "duo": o.
"duff" · 4 letters · shape CVCC · "duo" · 3 letters · shape CVV
Known mistypes of this pair
- duff ← dduff · dfuf · duf · udff
Frequently Asked Questions
Do "duff" and "duo" mean the same thing in a sentence?
Frequency check: "duff" vs "duo" - which ranks higher?
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 "duff" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "duo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #259,142 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "duff" and "duo" also get mixed up with nearby pairs, the highest-scored neighbour is "duff 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 #259,142 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.