Which to use
“pistão” and “portão” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #26,846
- “pistão” frequency rank
- #5,450
- “portão” frequency rank
- 32296
- confusion score
Side-by-Side Comparison
| Feature | pistão | portão |
|---|---|---|
| Definition | peça cilíndrica normalmente feita de alumínio ou liga de alumínio, que se move longitudinalmente no interior do cilindro dos motores de explosão | porta grande |
Where the eye mixes pistão and portão
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. pistão and portão follow the identical consonant-vowel pattern (CVCCVV). Same shape at a glance is often the real trap, independent of shared letters.
Look-alike desk: pistão vs portão
A purely visual mix-up. pistão (/piʃ.ˈtɐ̃w̃/) and portão (/puɾ.ˈtɐ̃w̃/) 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 32296, derived from the frequency rank of both members and their visual similarity.
pistão is recorded at frequency rank #26,846, classified as anoun, pronounced /piʃ.ˈtɐ̃w̃/. portão is at rank #5,450, tagged as anoun, pronounced /puɾ.ˈtɐ̃w̃/.
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 32296, this pair ranks #35,548 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of pistão vs portão
Shared letters: optã. Private to "pistão": is. Private to "portão": r.
"pistão" · 6 letters · shape CVCCVV · "portão" · 6 letters · shape CVCCVV
Frequently Asked Questions
Can "pistão" and "portão" be used interchangeably?
Which is more common, "pistão" or "portão"?
Useful next steps
Eye-level mix-up between "pistão" and "portão" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "pistão" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "portão" - compare definitions side by side with the headword page. Word entry
- This pair ranks #35,548 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "pistão" and "portão" also get mixed up with nearby pairs, the highest-scored neighbour is "pastar vs pistão". Nearby pair
Confusion rank #35,548 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.