Which to use
“seu” is a noun and “sin” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #31
- “seu” frequency rank
- #8,687
- “sin” frequency rank
- 8718
- confusion score
Side-by-Side Comparison
| Feature | seu | sin |
|---|---|---|
| Definition | senhor | aquilo, aquele |
Letter map: seu vs sin
Shared letters muted; letters that set seu and sin apart highlighted. Shared run: 1.
Grammar separator: seu vs sin
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: seu is anoun and sinapronoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 8718, derived from the frequency rank of both members and their visual similarity.
seu is recorded at frequency rank #31, classified as anoun. sin is at rank #8,687, tagged as apron.
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 8718, this pair ranks #64,957 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of seu vs sin
Shared letters: s. Private to "seu": eu. Private to "sin": in.
"seu" · 3 letters · shape CVV · "sin" · 3 letters · shape CVC
Frequently Asked Questions
Can "seu" and "sin" be used interchangeably?
In ordinary Portuguese text, does "seu" or "sin" show up more?
Useful next steps
Pair "seu" vs "sin" is on the table, pick a follow-up below.
- Full dictionary entry for "seu" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sin" - compare definitions side by side with the headword page. Word entry
- This pair ranks #64,957 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "seu" and "sin" also get mixed up with nearby pairs, the highest-scored neighbour is "Sau vs sin". Nearby pair
Confusion rank #64,957 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.