seuvssieWhich spelling fits?

Quick tell: seu is a noun, sie is a pronoun, so they fill different roles in a sentence.

Which to use

“seu” is a noun and “sie” is a pronoun - they look or sound alike but fill different roles in a sentence.

#31
“seu” frequency rank
#40,788
“sie” frequency rank
40819
confusion score

Side-by-Side Comparison

Feature seu sie
Definition senhor ela, pronome pessoal feminino do caso nominativo da terceira pessoa do singular:

Letter map: seu vs sie

Shared letters muted; letters that set seu and sie apart highlighted. Shared run: 2. seu and sie follow the identical consonant-vowel pattern (CVV). Same shape at a glance is often the real trap, independent of shared letters.

3 ch
seu
3 ch
sie

Part-of-speech tell for seu / sie

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: seu is anoun and sieapronoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 40819, derived from the frequency rank of both members and their visual similarity.

seu is recorded at frequency rank #31, classified as anoun. sie is at rank #40,788, tagged as apron, pronounced /zi:/ ouvir^(fonte ?) ouvir^(fonte ?).

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 40819, this pair ranks #25,218 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of seu vs sie

Shared letters: es. Private to "seu": u. Private to "sie": i.

"seu" · 3 letters · shape CVV  ·  "sie" · 3 letters · shape CVV

Frequently Asked Questions

Do "seu" and "sie" mean the same thing in a sentence?
No - they are not even the same part of speech. "seu" is a noun and "sie" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "seu" vs "sie" - which ranks higher?
"seu" is the more common of the two: it sits at frequency rank #31 in our Portuguese list, against #40,788 for "sie". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

You've compared "seu" and "sie". Here's where to go from here.

  • Full dictionary entry for "seu" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "sie" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #25,218 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "seu" and "sie" also get mixed up with nearby pairs, the highest-scored neighbour is "Sau vs sie". Nearby pair

Confusion rank #25,218 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list