Which to use
“si” is a pronoun and “sire” is a noun - they look or sound alike but fill different roles in a sentence.
- #482
- “si” frequency rank
- #48,121
- “sire” frequency rank
- 48603
- confusion score
Side-by-Side Comparison
| Feature | si | sire |
|---|---|---|
| Definition | refere-se à terceira pessoa, indica reflexividade e é usado após preposição (a, de, em, contra, sobre, por, etc., exceto com) | senhor (como forma de tratamento a alguém superior) |
Letter map: si vs sire
Shared letters muted; letters that set si and sire apart highlighted. Shared run: 2.
Role in the sentence - si and sire
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: si is apronoun and sireanoun. On the page they differ by 2 extra letter(s) - “si” sits inside “sire”. Our composite confusion score for this pair is 48603, derived from the frequency rank of both members and their visual similarity.
si is recorded at frequency rank #482, classified as apron, pronounced /ˈsi/. sire is at rank #48,121, tagged as anoun.
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 48603, this pair ranks #16,572 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of si vs sire
Shared letters: is. Private to "si": -. Private to "sire": er.
"si" · 2 letters · shape CV · "sire" · 4 letters · shape CVCV
Known mistypes of this pair
- sire ← isre · sier · sirre · srie · ssire
Frequently Asked Questions
Do "si" and "sire" mean the same thing in a sentence?
In ordinary Portuguese text, does "si" or "sire" show up more?
Useful next steps
Pair "si" vs "sire" is on the table, pick a follow-up below.
- Full dictionary entry for "si" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sire" - compare definitions side by side with the headword page. Word entry
- This pair ranks #16,572 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "si" and "sire" also get mixed up with nearby pairs, the highest-scored neighbour is "shire vs sire". 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 #16,572 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.