Which to use
“onda” is a noun and “ons” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #2,059
- “onda” frequency rank
- #48,564
- “ons” frequency rank
- 50623
- confusion score
Side-by-Side Comparison
| Feature | onda | ons |
|---|---|---|
| Definition | elevação e depressão da camada superficial de uma massa líquida; vaga | pronome pessoal neutro do caso nominativo da terceira pessoa do plural |
Where the eye mixes onda and ons
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. onda runs 4 letters (VCCV) against ons's 3 (VCC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses onda with ons
These two trip readers on the page rather than in the ear: onda is /ˈõ.dɐ/ while ons is /ons/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 50623, 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/. ons is at rank #48,564, tagged as apron, pronounced /ons/.
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 50623, this pair ranks #14,336 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of onda vs ons
Shared letters: no. Private to "onda": ad. Private to "ons": s.
"onda" · 4 letters · shape VCCV · "ons" · 3 letters · shape VCC
Known mistypes of this pair
- onda ← noda · odna · onad · ondda · onnda
Frequently Asked Questions
Is swapping "onda" for "ons" ever safe?
Which is more common, "onda" or "ons"?
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 "onda" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ons" - compare definitions side by side with the headword page. Word entry
- This pair ranks #14,336 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "onda" and "ons" 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 #14,336 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.