Which to use
“oco” is an adjective and “ONU” is an abbrev - they look or sound alike but fill different roles in a sentence.
- #27,951
- “oco” frequency rank
- #3,850
- “ONU” frequency rank
- 31801
- confusion score
Side-by-Side Comparison
| Feature | oco | ONU |
|---|---|---|
| Definition | que não tem miolo | sigla para a Organização das Nações Unidas |
Letter map: oco vs ONU
Shared letters muted; letters that set oco and ONU apart highlighted. Shared run: 1.
Part-of-speech tell for oco / ONU
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: oco is anadjective and ONUanabbrev. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 31801, derived from the frequency rank of both members and their visual similarity.
oco is recorded at frequency rank #27,951, classified as anadj, pronounced /ˈo.ku/. ONU is at rank #3,850, tagged as anabbrev.
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 31801, this pair ranks #36,183 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of oco vs ONU
Shared letters: o. Private to "oco": c. Private to "ONU": nu.
"oco" · 3 letters · shape VCV · "ONU" · 3 letters · shape VCV
Frequently Asked Questions
Is swapping "oco" for "ONU" ever safe?
Which is more common, "oco" or "ONU"?
What to do next
Done with this confusable. These links stay specific to "oco" and "ONU".
- Full dictionary entry for "oco" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ONU" - compare definitions side by side with the headword page. Word entry
- This pair ranks #36,183 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "oco" and "ONU" also get mixed up with nearby pairs, the highest-scored neighbour is "oco vs oni". Nearby pair
Confusion rank #36,183 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.