Which to use
“dia” and “dun” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #51
- “dia” frequency rank
- #45,320
- “dun” frequency rank
- 45371
- confusion score
Side-by-Side Comparison
| Feature | dia | dun |
|---|---|---|
| Definition | espaço de tempo correspondente à rotação da Terra, que equivale a 23 horas, 56 minutos e 4 segundos | penugem imatura em pássaros jovens |
Where the eye mixes dia and dun
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. dia (CVV) and dun (CVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Visual trap between dia and dun
A purely visual mix-up. dia (/'dʒi.a/) and dun (/duːn/, [d̥uːˀn]) 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 45371, derived from the frequency rank of both members and their visual similarity.
dia is recorded at frequency rank #51, classified as anoun, pronounced /'dʒi.a/. dun is at rank #45,320, tagged as anoun, pronounced /duːn/, [d̥uːˀn].
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 45371, this pair ranks #20,031 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of dia vs dun
Shared letters: d. Private to "dia": ai. Private to "dun": nu.
"dia" · 3 letters · shape CVV · "dun" · 3 letters · shape CVC
Frequently Asked Questions
Do "dia" and "dun" mean the same thing in a sentence?
Frequency check: "dia" vs "dun" - which ranks higher?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "dia" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "dun" - compare definitions side by side with the headword page. Word entry
- This pair ranks #20,031 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "dia" and "dun" also get mixed up with nearby pairs, the highest-scored neighbour is "dat vs dun". Nearby pair
Confusion rank #20,031 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.