Which to use
“casco” and “cisão” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #14,093
- “casco” frequency rank
- #36,806
- “cisão” frequency rank
- 50899
- confusion score
Side-by-Side Comparison
| Feature | casco | cisão |
|---|---|---|
| Definition | invólucro do crânio | ato de cindir |
Where the eye mixes casco and cisão
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. casco (CVCCV) and cisão (CVCVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Visual trap between casco and cisão
A purely visual mix-up. casco (/ˈkaʃ.ku/) and cisão (/si.ˈzɐ̃w̃/) 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 50899, derived from the frequency rank of both members and their visual similarity.
casco is recorded at frequency rank #14,093, classified as anoun, pronounced /ˈkaʃ.ku/. cisão is at rank #36,806, tagged as anoun, pronounced /si.ˈzɐ̃w̃/.
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 50899, this pair ranks #14,056 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of casco vs cisão
Shared letters: cos. Private to "casco": a. Private to "cisão": iã.
"casco" · 5 letters · shape CVCCV · "cisão" · 5 letters · shape CVCVV
Known mistypes of this pair
- casco ← acsco · cacso · cascco · casoc · cassco · ccasco · csaco
Frequently Asked Questions
Do "casco" and "cisão" mean the same thing in a sentence?
Which is more common, "casco" or "cisão"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "casco" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cisão" - compare definitions side by side with the headword page. Word entry
- This pair ranks #14,056 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "casco" and "cisão" also get mixed up with nearby pairs, the highest-scored neighbour is "ciao vs cisão". 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 #14,056 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.