Which to use
“saiu” is a verb and “si” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #1,035
- “saiu” frequency rank
- #482
- “si” frequency rank
- 1517
- confusion score
Side-by-Side Comparison
| Feature | saiu | si |
|---|---|---|
| Definition | Terceira pessoa do singular do pretérito perfeito do indicativo do verbo sair. | refere-se à terceira pessoa, indica reflexividade e é usado após preposição (a, de, em, contra, sobre, por, etc., exceto com) |
Letter map: saiu vs si
Shared letters muted; letters that set saiu and si apart highlighted. Shared run: 2. saiu runs 4 letters (CVVV) against si's 2 (CV) - the length gap alone is often enough to separate them once you know to check it.
Grammar separator: saiu vs si
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: saiu is averb and siapronoun. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 1517, derived from the frequency rank of both members and their visual similarity.
saiu is recorded at frequency rank #1,035, classified as averb. si is at rank #482, tagged as apron, pronounced /ˈsi/.
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 1517, this pair ranks #74,037 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of saiu vs si
Shared letters: is. Private to "saiu": au. Private to "si": -.
"saiu" · 4 letters · shape CVVV · "si" · 2 letters · shape CV
Known mistypes of this pair
- saiu ← asiu · saui · siau · ssaiu
Frequently Asked Questions
Is swapping "saiu" for "si" ever safe?
Which is more common, "saiu" or "si"?
What to do next
You've compared "saiu" and "si". Here's where to go from here.
- Full dictionary entry for "saiu" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "si" - compare definitions side by side with the headword page. Word entry
- This pair ranks #74,037 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "saiu" and "si" also get mixed up with nearby pairs, the highest-scored neighbour is "saiu vs Sau". 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 #74,037 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.