Which to use
“oss” is a pronoun and “osso” is an adjective - they look or sound alike but fill different roles in a sentence.
- #31,905
- “oss” frequency rank
- #5,563
- “osso” frequency rank
- 37468
- confusion score
Side-by-Side Comparison
| Feature | oss | osso |
|---|---|---|
| Definition | nos | árduo, difícil; complicado |
Letter map: oss vs osso
Shared letters muted; letters that set oss and osso apart highlighted. Shared run: 3.
Part-of-speech tell for oss / osso
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: oss is apronoun and ossoanadjective. On the page they differ by 1 extra letter(s) - “oss” sits inside “osso”. Our composite confusion score for this pair is 37468, derived from the frequency rank of both members and their visual similarity.
oss is recorded at frequency rank #31,905, classified as apron. osso is at rank #5,563, tagged as anadj, pronounced /ˈo.su/.
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 37468, this pair ranks #29,137 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of oss vs osso
Shared letters: os. Private to "oss": -. Private to "osso": -.
"oss" · 3 letters · shape VCC · "osso" · 4 letters · shape VCCV
Known mistypes of this pair
- osso ← oso · osos · soso
Frequently Asked Questions
Is swapping "oss" for "osso" ever safe?
In ordinary Portuguese text, does "oss" or "osso" show up more?
After this comparison
You've compared "oss" and "osso". Here's where to go from here.
- Full dictionary entry for "oss" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "osso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #29,137 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "oss" and "osso" also get mixed up with nearby pairs, the highest-scored neighbour is "oni vs oss". 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 #29,137 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.