Which to use
“sie” is a pronoun and “sob” is a preposition - they look or sound alike but fill different roles in a sentence.
- #40,788
- “sie” frequency rank
- #320
- “sob” frequency rank
- 41108
- confusion score
Side-by-Side Comparison
| Feature | sie | sob |
|---|---|---|
| Definition | ela, pronome pessoal feminino do caso nominativo da terceira pessoa do singular: | abaixo, em baixo |
Where the eye mixes sie and sob
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses sie with sob
These two trip readers on the page rather than in the ear: sie is /zi:/ ouvir^(fonte ?) ouvir^(fonte ?) while sob is /ˈsob/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (pronoun vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 41108, derived from the frequency rank of both members and their visual similarity.
sie is recorded at frequency rank #40,788, classified as apron, pronounced /zi:/ ouvir^(fonte ?) ouvir^(fonte ?). sob is at rank #320, tagged as aprep, pronounced /ˈsob/.
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 41108, this pair ranks #24,883 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of sie vs sob
Shared letters: s. Private to "sie": ei. Private to "sob": bo.
"sie" · 3 letters · shape CVV · "sob" · 3 letters · shape CVC
Frequently Asked Questions
Can "sie" and "sob" be used interchangeably?
Frequency check: "sie" vs "sob" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "sie" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sob" - compare definitions side by side with the headword page. Word entry
- This pair ranks #24,883 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "sie" and "sob" also get mixed up with nearby pairs, the highest-scored neighbour is "Sau vs sie". Nearby pair
Confusion rank #24,883 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.