Which to use
“oss” is a pronoun and “Ost” is a noun - they look or sound alike but fill different roles in a sentence.
- #31,905
- “oss” frequency rank
- #27,958
- “Ost” frequency rank
- 59863
- confusion score
Side-by-Side Comparison
| Feature | oss | Ost |
|---|---|---|
| Definition | nos | leste |
Letter map: oss vs Ost
Shared letters muted; letters that set oss and Ost apart highlighted. Shared run: 2.
Part-of-speech tell for oss / Ost
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: oss is apronoun and Ostanoun. On the page they differ by a single letter - s in “oss” becomes t in “Ost”. Our composite confusion score for this pair is 59863, derived from the frequency rank of both members and their visual similarity.
oss is recorded at frequency rank #31,905, classified as apron. Ost is at rank #27,958, tagged as anoun, pronounced /ɔst/.
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 59863, this pair ranks #7,960 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of oss vs Ost
Shared letters: os. Private to "oss": -. Private to "Ost": t.
"oss" · 3 letters · shape VCC · "Ost" · 3 letters · shape VCC
Frequently Asked Questions
Is swapping "oss" for "Ost" ever safe?
In ordinary Portuguese text, does "oss" or "Ost" show up more?
What to do next
Pair "oss" vs "Ost" is on the table, pick a follow-up below.
- Full dictionary entry for "oss" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Ost" - compare definitions side by side with the headword page. Word entry
- This pair ranks #7,960 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "oss" and "Ost" also get mixed up with nearby pairs, the highest-scored neighbour is "oni vs oss". Nearby pair
Confusion rank #7,960 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.