Which to use
“days” is an adverb and “dois” is a num - they look or sound alike but fill different roles in a sentence.
- #8,033
- “days” frequency rank
- #109
- “dois” frequency rank
- 8142
- confusion score
Side-by-Side Comparison
| Feature | days | dois |
|---|---|---|
| Definition | durante o dia (repetidamente): | número equivalente a um mais um; cardinalidade de um conjunto que contenha um elemento e um outro elemento distinto; representado pelo símbolo 2 (algarismos indo-arábicos) ou II (algarismos romanos); seu feminino é duas |
Where the eye mixes days and dois
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses days with dois
These two trip readers on the page rather than in the ear: days is /ˈdeɪz/ while dois is /ˈdojʃ/. 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 (adverb vs num), which is usually the fastest check. Our composite confusion score for this pair is 8142, derived from the frequency rank of both members and their visual similarity.
days is recorded at frequency rank #8,033, classified as anadv, pronounced /ˈdeɪz/. dois is at rank #109, tagged as anum, pronounced /ˈdojʃ/.
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 8142, this pair ranks #65,745 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of days vs dois
Shared letters: ds. Private to "days": ay. Private to "dois": io.
"days" · 4 letters · shape CVVC · "dois" · 4 letters · shape CVVC
Known mistypes of this pair
Frequently Asked Questions
Can "days" and "dois" be used interchangeably?
In ordinary Portuguese text, does "days" or "dois" show up more?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "days" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "dois" - compare definitions side by side with the headword page. Word entry
- This pair ranks #65,745 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "days" and "dois" also get mixed up with nearby pairs, the highest-scored neighbour is "dat vs days". 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 #65,745 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.