Which to use
“data” is a noun and “days” is an adverb - they look or sound alike but fill different roles in a sentence.
- #802
- “data” frequency rank
- #8,033
- “days” frequency rank
- 8835
- confusion score
Side-by-Side Comparison
| Feature | data | days |
|---|---|---|
| Definition | valor que indica um determinado momento no tempo | durante o dia (repetidamente): |
Where the eye mixes data and days
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: data vs days
These two trip readers on the page rather than in the ear: data is /'da.tə/ while days is /ˈdeɪz/. 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 (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 8835, derived from the frequency rank of both members and their visual similarity.
data is recorded at frequency rank #802, classified as anoun, pronounced /'da.tə/. days is at rank #8,033, tagged as anadv, pronounced /ˈdeɪz/.
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 8835, this pair ranks #64,798 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of data vs days
Shared letters: ad. Private to "data": t. Private to "days": sy.
"data" · 4 letters · shape CVCV · "days" · 4 letters · shape CVVC
Known mistypes of this pair
Frequently Asked Questions
Can "data" and "days" be used interchangeably?
Frequency check: "data" vs "days" - which ranks higher?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "data" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "days" - compare definitions side by side with the headword page. Word entry
- This pair ranks #64,798 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "data" and "days" 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 #64,798 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.