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 |
Where the spellings diverge
Shared letters are muted; the letters that actually set ora and ostra apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
ora and ostra form a confusable pair in the Portuguese index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 2 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. 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.
Frequency comparison
Frequently Asked Questions
Can "ora" and "ostra" be used interchangeably?
Remembering ora vs ostra
The fastest way to pick the right one every time.
- Check the role first: if you need an adverb, it's “ora”; for a noun, it's “ostra”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “ora” entry
- Browse more pairs most likely to be confused. Most confusable