Which to use
“os” is an article and “Ost” is a noun - they look or sound alike but fill different roles in a sentence.
- #19
- “os” frequency rank
- #27,958
- “Ost” frequency rank
- 27977
- confusion score
Side-by-Side Comparison
| Feature | os | Ost |
|---|---|---|
| Definition | usado para apontar um nome definido, único | leste |
Where the spellings diverge
Shared letters are muted; the letters that actually set os and Ost apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
os and Ost 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 1 extra letter(s) - “os” sits inside “Ost” - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 27977, derived from the frequency rank of both members and their visual similarity.
os is recorded at frequency rank #19, classified as anarticle, pronounced /uʃ/, /us/ (menos frequente); enfático: /oʃ/, /os/ (menos frequente). 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 27977, this pair ranks #40,916 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "os" and "Ost" be used interchangeably?
Remembering os vs Ost
The fastest way to pick the right one every time.
- Check the role first: if you need an article, it's “os”; for a noun, it's “Ost”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “os” entry
- Browse more pairs most likely to be confused. Most confusable