Which to use
“duas” is a num and “duto” is a noun - they look or sound alike but fill different roles in a sentence.
- #188
- “duas” frequency rank
- #35,558
- “duto” frequency rank
- 35746
- confusion score
Side-by-Side Comparison
| Feature | duas | duto |
|---|---|---|
| Definition | feminino de dois/dous; representado pelo símbolo 2 (algarismos indo-arábicos) ou II (algarismos romanos) | cano (peça cilíndrica oca) |
Where the eye mixes duas and duto
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: duas vs duto
These two trip readers on the page rather than in the ear: duas is /ˈdu.ɐʃ/ while duto is /'du.tʊ/.. 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 35746, derived from the frequency rank of both members and their visual similarity.
duas is recorded at frequency rank #188, classified as anum, pronounced /ˈdu.ɐʃ/. duto is at rank #35,558, tagged as anoun, pronounced /'du.tʊ/..
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 35746, this pair ranks #31,252 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of duas vs duto
Shared letters: du. Private to "duas": as. Private to "duto": ot.
"duas" · 4 letters · shape CVVC · "duto" · 4 letters · shape CVCV
Known mistypes of this pair
Frequently Asked Questions
Can "duas" and "duto" be used interchangeably?
In ordinary Portuguese text, does "duas" or "duto" show up more?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "duas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "duto" - compare definitions side by side with the headword page. Word entry
- This pair ranks #31,252 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "duas" and "duto" also get mixed up with nearby pairs, the highest-scored neighbour is "dat vs duto". 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 #31,252 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.