Which to use
“ons” is a pronoun and “os” is an article - they look or sound alike but fill different roles in a sentence.
- #48,564
- “ons” frequency rank
- #19
- “os” frequency rank
- 48583
- confusion score
Side-by-Side Comparison
| Feature | ons | os |
|---|---|---|
| Definition | pronome pessoal neutro do caso nominativo da terceira pessoa do plural | usado para apontar um nome definido, único |
Where the eye mixes ons and os
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: ons vs os
These two trip readers on the page rather than in the ear: ons is /ons/ while os is /uʃ/, /us/ (menos frequente); enfático: /oʃ/, /os/ (menos frequente). 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 (pronoun vs article), which is usually the fastest check. Our composite confusion score for this pair is 48583, derived from the frequency rank of both members and their visual similarity.
ons is recorded at frequency rank #48,564, classified as apron, pronounced /ons/. os is at rank #19, tagged as anarticle, pronounced /uʃ/, /us/ (menos frequente); enfático: /oʃ/, /os/ (menos frequente).
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 48583, this pair ranks #16,590 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of ons vs os
Shared letters: os. Private to "ons": n. Private to "os": -.
"ons" · 3 letters · shape VCC · "os" · 2 letters · shape VC
Frequently Asked Questions
Do "ons" and "os" mean the same thing in a sentence?
Which is more common, "ons" or "os"?
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 "ons" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "os" - compare definitions side by side with the headword page. Word entry
- This pair ranks #16,590 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "ons" and "os" also get mixed up with nearby pairs, the highest-scored neighbour is "oni vs ons". Nearby pair
Confusion rank #16,590 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.