Which to use
“day” and “duo” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #2,512
- “day” frequency rank
- #15,317
- “duo” frequency rank
- 17829
- confusion score
Side-by-Side Comparison
| Feature | day | duo |
|---|---|---|
| Definition | dia (período de 24 horas) | grupo de duas pessoas que atuam conjuntamente |
Where the eye mixes day and duo
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between day and duo
A purely visual mix-up. day (/deɪ/) and duo ([du.o], Plural: [du.os]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 17829, derived from the frequency rank of both members and their visual similarity.
day is recorded at frequency rank #2,512, classified as anoun, pronounced /deɪ/. duo is at rank #15,317, tagged as anoun, pronounced [du.o], Plural: [du.os].
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 17829, this pair ranks #53,312 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of day vs duo
Shared letters: d. Private to "day": ay. Private to "duo": ou.
"day" · 3 letters · shape CVV · "duo" · 3 letters · shape CVV
Frequently Asked Questions
Can "day" and "duo" be used interchangeably?
Which is more common, "day" or "duo"?
What to do next
Eye-level mix-up between "day" and "duo" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "day" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "duo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #53,312 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "day" and "duo" also get mixed up with nearby pairs, the highest-scored neighbour is "dat vs duo". Nearby pair
Confusion rank #53,312 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.