Which to use
“deux” is a num and “dúo” is a noun - they look or sound alike but fill different roles in a sentence.
- #46,494
- “deux” frequency rank
- #12,808
- “dúo” frequency rank
- 59302
- confusion score
Side-by-Side Comparison
| Feature | deux | dúo |
|---|---|---|
| Definition | Dos. | Composición musical escrita para ser interpretada por dos instrumentos o dos voces. |
Where the eye mixes deux and dúo
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. deux runs 4 letters (CVVC) against dúo's 3 (CVV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between deux and dúo
These two trip readers on the page rather than in the ear: deux is /dø/ while dúo is [ˈd̪uo]. 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 (num vs noun), which is usually the fastest check. Our composite confusion score for this pair is 59302, derived from the frequency rank of both members and their visual similarity.
deux is recorded at frequency rank #46,494, classified as anum, pronounced /dø/. dúo is at rank #12,808, tagged as anoun, pronounced [ˈd̪uo].
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 59302, this pair ranks #63,130 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of deux vs dúo
Shared letters: d. Private to "deux": eux. Private to "dúo": oú.
"deux" · 4 letters · shape CVVC · "dúo" · 3 letters · shape CVV
Known mistypes of this pair
- deux ← ddeux · deuxx · dexu · duex · edux
Frequently Asked Questions
Do "deux" and "dúo" mean the same thing in a sentence?
Frequency check: "deux" vs "dúo" - 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 "deux" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "dúo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #63,130 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "deux" and "dúo" also get mixed up with nearby pairs, the highest-scored neighbour is "deux vs Deva". 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 #63,130 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.