Which to use
“dos” is a num and “dúo” is a noun - they look or sound alike but fill different roles in a sentence.
- #57
- “dos” frequency rank
- #12,808
- “dúo” frequency rank
- 12865
- confusion score
Side-by-Side Comparison
| Feature | dos | dúo |
|---|---|---|
| Definition | Que consta de uno más que la unidad (1+1). | Composición musical escrita para ser interpretada por dos instrumentos o dos voces. |
Where the eye mixes dos and dúo
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between dos and dúo
These two trip readers on the page rather than in the ear: dos is [ˈd̪os] while dúo is [ˈd̪uo]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (num vs noun), which is usually the fastest check. Our composite confusion score for this pair is 12865, derived from the frequency rank of both members and their visual similarity.
dos is recorded at frequency rank #57, classified as anum, pronounced [ˈd̪os]. 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 12865, this pair ranks #289,969 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of dos vs dúo
Shared letters: do. Private to "dos": s. Private to "dúo": ú.
"dos" · 3 letters · shape CVC · "dúo" · 3 letters · shape CVV
Frequently Asked Questions
Can "dos" and "dúo" be used interchangeably?
In ordinary Spanish text, does "dos" or "dúo" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "dos" 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 #289,969 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "dos" and "dúo" also get mixed up with nearby pairs, the highest-scored neighbour is "divo vs dúo". Nearby pair
Confusion rank #289,969 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.