Which to use
“ora” is an adverb and “ostra” is a noun - they look or sound alike but fill different roles in a sentence.
- #2,489
- “ora” frequency rank
- #37,449
- “ostra” frequency rank
- 39938
- confusion score
Side-by-Side Comparison
| Feature | ora | ostra |
|---|---|---|
| Definition | agora | nome comum a vários moluscos bivalves da família dos ostreídeos, alguns tendo importância econômica por serem comestíveis e de alto valor nutritivo, outras espécies que são cultivadas para a produção de pérolas, que vivem fixados a alguma base |
Letter map: ora vs ostra
Shared letters muted; letters that set ora and ostra apart highlighted. Shared run: 3.
Part-of-speech tell for ora / ostra
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ora is anadverb and ostraanoun. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 39938, derived from the frequency rank of both members and their visual similarity.
ora is recorded at frequency rank #2,489, classified as anadv. ostra is at rank #37,449, tagged as anoun, pronounced /ˈos.tɾɐ/.
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 39938, this pair ranks #26,232 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ora vs ostra
Shared letters: aor. Private to "ora": -. Private to "ostra": st.
"ora" · 3 letters · shape VCV · "ostra" · 5 letters · shape VCCCV
Known mistypes of this pair
- ostra ← osrta · osstra · ostar · ostrra · osttra · otsra · sotra
Frequently Asked Questions
Can "ora" and "ostra" be used interchangeably?
Frequency check: "ora" vs "ostra" - which ranks higher?
Useful next steps
Done with this confusable. These links stay specific to "ora" and "ostra".
- Full dictionary entry for "ora" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ostra" - compare definitions side by side with the headword page. Word entry
- This pair ranks #26,232 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "ora" and "ostra" also get mixed up with nearby pairs, the highest-scored neighbour is "ostra vs ota". 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 #26,232 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.