Which to use
“ob” is a pronoun and “obra” is a noun - they look or sound alike but fill different roles in a sentence.
- #28,692
- “ob” frequency rank
- #702
- “obra” frequency rank
- 29394
- confusion score
Side-by-Side Comparison
| Feature | ob | obra |
|---|---|---|
| Definition | eu, pronome pessoal do caso nominativo da primeira pessoa do singular; | resultado de uma ação ou de um trabalho |
Where the eye mixes ob and obra
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: ob vs obra
These two trip readers on the page rather than in the ear: ob is /ob/ while obra is /ˈɔ.bɾɐ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “ob” sits inside “obra”, and the parts of speech differ too (pronoun vs noun), which is usually the fastest check. Our composite confusion score for this pair is 29394, derived from the frequency rank of both members and their visual similarity.
ob is recorded at frequency rank #28,692, classified as apron, pronounced /ob/. obra is at rank #702, tagged as anoun, pronounced /ˈɔ.bɾɐ/.
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 29394, this pair ranks #39,258 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ob vs obra
Shared letters: bo. Private to "ob": -. Private to "obra": ar.
"ob" · 2 letters · shape VC · "obra" · 4 letters · shape VCCV
Known mistypes of this pair
- obra ← obar · obbra · obrra · orba
Frequently Asked Questions
Can "ob" and "obra" be used interchangeably?
Frequency check: "ob" vs "obra" - 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 "ob" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "obra" - compare definitions side by side with the headword page. Word entry
- This pair ranks #39,258 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "ob" and "obra" also get mixed up with nearby pairs, the highest-scored neighbour is "ob vs oni". 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 #39,258 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.