Which to use
“onda” is a noun and “oni” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #2,059
- “onda” frequency rank
- #49,618
- “oni” frequency rank
- 51677
- confusion score
Side-by-Side Comparison
| Feature | onda | oni |
|---|---|---|
| Definition | elevação e depressão da camada superficial de uma massa líquida; vaga | pronome pessoal do caso nominativo da terceira pessoa do plural de gênero masculino pessoal, eles |
Letter map: onda vs oni
Shared letters muted; letters that set onda and oni apart highlighted. Shared run: 2.
Role in the sentence - onda and oni
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: onda is anoun and oniapronoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 51677, derived from the frequency rank of both members and their visual similarity.
onda is recorded at frequency rank #2,059, classified as anoun, pronounced /ˈõ.dɐ/. oni is at rank #49,618, tagged as apron.
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 51677, this pair ranks #13,405 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of onda vs oni
Shared letters: no. Private to "onda": ad. Private to "oni": i.
"onda" · 4 letters · shape VCCV · "oni" · 3 letters · shape VCV
Known mistypes of this pair
- onda ← noda · odna · onad · ondda · onnda
Frequently Asked Questions
Is swapping "onda" for "oni" ever safe?
Which is more common, "onda" or "oni"?
Useful next steps
You've compared "onda" and "oni". Here's where to go from here.
- Full dictionary entry for "onda" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "oni" - compare definitions side by side with the headword page. Word entry
- This pair ranks #13,405 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "onda" and "oni" also get mixed up with nearby pairs, the highest-scored neighbour is "oni vs ons". 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 #13,405 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.