Which to use
“sais” is a noun and “si” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #11,150
- “sais” frequency rank
- #482
- “si” frequency rank
- 11632
- confusion score
Side-by-Side Comparison
| Feature | sais | si |
|---|---|---|
| Definition | substâncias voláteis dadas a uma pessoa desmaiada para fazer com que ela acorde | refere-se à terceira pessoa, indica reflexividade e é usado após preposição (a, de, em, contra, sobre, por, etc., exceto com) |
Letter map: sais vs si
Shared letters muted; letters that set sais and si apart highlighted. Shared run: 2.
Part-of-speech tell for sais / si
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sais is anoun and siapronoun. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 11632, derived from the frequency rank of both members and their visual similarity.
sais is recorded at frequency rank #11,150, classified as anoun. 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 11632, this pair ranks #61,178 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of sais vs si
Shared letters: is. Private to "sais": a. Private to "si": -.
"sais" · 4 letters · shape CVVC · "si" · 2 letters · shape CV
Known mistypes of this pair
- sais ← saiss · sasi · sias · ssais
Frequently Asked Questions
Do "sais" and "si" mean the same thing in a sentence?
Which is more common, "sais" or "si"?
After this comparison
Done with this confusable. These links stay specific to "sais" and "si".
- Full dictionary entry for "sais" 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 #61,178 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "sais" and "si" also get mixed up with nearby pairs, the highest-scored neighbour is "sais 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 #61,178 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.