Which to use
“oba” is a num and “omo” is a noun - they look or sound alike but fill different roles in a sentence.
- #20,674
- “oba” frequency rank
- #40,711
- “omo” frequency rank
- 61385
- confusion score
Side-by-Side Comparison
| Feature | oba | omo |
|---|---|---|
| Definition | ambos, um e outro, uma e outra | ohm, unidade de medida de resistência elétrica no Sistema Internacional de Unidades (SI) |
Where the eye mixes oba and omo
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. oba and omo follow the identical consonant-vowel pattern (VCV). Same shape at a glance is often the real trap, independent of shared letters.
Visual trap between oba and omo
These two trip readers on the page rather than in the ear: oba is /ˈʔɔba/ ouvir^(fonte ?) while omo is /ˈo.mo/, /ˈɔ.mɔ/. 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 (num vs noun), which is usually the fastest check. Our composite confusion score for this pair is 61385, derived from the frequency rank of both members and their visual similarity.
oba is recorded at frequency rank #20,674, classified as anum, pronounced /ˈʔɔba/ ouvir^(fonte ?). omo is at rank #40,711, tagged as anoun, pronounced /ˈo.mo/, /ˈɔ.mɔ/.
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 61385, this pair ranks #7,162 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of oba vs omo
Shared letters: o. Private to "oba": ab. Private to "omo": m.
"oba" · 3 letters · shape VCV · "omo" · 3 letters · shape VCV
Frequently Asked Questions
Is swapping "oba" for "omo" ever safe?
In ordinary Portuguese text, does "oba" or "omo" show up more?
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 "oba" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "omo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #7,162 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "oba" and "omo" also get mixed up with nearby pairs, the highest-scored neighbour is "omo vs oni". Nearby pair
Confusion rank #7,162 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.