Which to use
“colchão” and “colisão” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #11,832
- “colchão” frequency rank
- #9,976
- “colisão” frequency rank
- 21808
- confusion score
Side-by-Side Comparison
| Feature | colchão | colisão |
|---|---|---|
| Definition | grande almofada cheia de uma substância flexível sobre a qual as pessoas se deitam | choque |
Where the eye mixes colchão and colisão
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. colchão (CVCCCVV) and colisão (CVCVCVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses colchão with colisão
A purely visual mix-up. colchão (/koɫ.ˈʃɐ̃w̃/) and colisão (/ku.li.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 21808, derived from the frequency rank of both members and their visual similarity.
colchão is recorded at frequency rank #11,832, classified as anoun, pronounced /koɫ.ˈʃɐ̃w̃/. colisão is at rank #9,976, tagged as anoun, pronounced /ku.li.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 21808, this pair ranks #48,369 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of colchão vs colisão
Shared letters: cloã. Private to "colchão": h. Private to "colisão": is.
"colchão" · 7 letters · shape CVCCCVV · "colisão" · 7 letters · shape CVCVCVV
Frequently Asked Questions
Can "colchão" and "colisão" be used interchangeably?
Frequency check: "colchão" vs "colisão" - 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 "colchão" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "colisão" - compare definitions side by side with the headword page. Word entry
- This pair ranks #48,369 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "colchão" and "colisão" also get mixed up with nearby pairs, the highest-scored neighbour is "colchão vs comichão". Nearby pair
Confusion rank #48,369 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.