Which to use
“dues” is an adjective and “duo” is a noun - they look or sound alike but fill different roles in a sentence.
- #8,532
- “dues” frequency rank
- #3,839
- “duo” frequency rank
- 12371
- confusion score
Side-by-Side Comparison
| Feature | dues | duo |
|---|---|---|
| Definition | Féminin pluriel de dû. | Morceau de musique fait pour être chanté par deux voix ou exécuté par deux instruments. |
Where the eye mixes dues and duo
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: dues vs duo
These two trip readers on the page rather than in the ear: dues is \dy\ while duo is \dɥɔ\. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 12371, derived from the frequency rank of both members and their visual similarity.
dues is recorded at frequency rank #8,532, classified as anadj, pronounced \dy\. 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 12371, this pair ranks #405,528 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of dues vs duo
Shared letters: du. Private to "dues": es. Private to "duo": o.
"dues" · 4 letters · shape CVVC · "duo" · 3 letters · shape CVV
Known mistypes of this pair
- dues ← ddues · duess · duse · udes
Frequently Asked Questions
Do "dues" and "duo" mean the same thing in a sentence?
Which is more common, "dues" or "duo"?
What to do next
Eye-level mix-up between "dues" and "duo" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "dues" 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 #405,528 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "dues" and "duo" also get mixed up with nearby pairs, the highest-scored neighbour is "dues 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 #405,528 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.