obravsorTell them apart

Quick tell: obra is a noun, or is a conjunction, so they fill different roles in a sentence.

Which to use

“obra” is a noun and “or” is a conjunction - they look or sound alike but fill different roles in a sentence.

#702
“obra” frequency rank
#3,505
“or” frequency rank
4207
confusion score

Side-by-Side Comparison

Feature obra or
Definition resultado de uma ação ou de um trabalho ou (inclusivo ou exclusivo)

Where the eye mixes obra and or

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
obra
2 ch
or

Why the eye confuses obra with or

These two trip readers on the page rather than in the ear: obra is /ˈɔ.bɾɐ/ while or is /ɔːɹ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs conjunction), which is usually the fastest check. Our composite confusion score for this pair is 4207, derived from the frequency rank of both members and their visual similarity.

obra is recorded at frequency rank #702, classified as anoun, pronounced /ˈɔ.bɾɐ/. or is at rank #3,505, tagged as aconj, pronounced /ɔːɹ/.

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 4207, this pair ranks #70,784 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of obra vs or

Shared letters: or. Private to "obra": ab. Private to "or": -.

"obra" · 4 letters · shape VCCV  ·  "or" · 2 letters · shape VC

Known mistypes of this pair

  • obraobar · obbra · obrra · orba

Frequently Asked Questions

Can "obra" and "or" be used interchangeably?
No - they are not even the same part of speech. "obra" is a noun and "or" a conjunction, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "obra" or "or"?
"obra" is the more common of the two: it sits at frequency rank #702 in our Portuguese list, against #3,505 for "or". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "obra" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "or" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #70,784 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "obra" and "or" also get mixed up with nearby pairs, the highest-scored neighbour is "oni vs or". 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 #70,784 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