Which to use
“cos” is a pronoun and “costa” is a noun - they look or sound alike but fill different roles in a sentence.
- #27,810
- “cos” frequency rank
- #885
- “costa” frequency rank
- 28695
- confusion score
Side-by-Side Comparison
| Feature | cos | costa |
|---|---|---|
| Definition | qualquer coisa | interface entre o mar e a terra |
Where the spellings diverge
Shared letters are muted; the letters that actually set cos and costa apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cos is apronoun and costaanoun. On the page they differ by 2 extra letter(s) - “cos” sits inside “costa”. Our composite confusion score for this pair is 28695, derived from the frequency rank of both members and their visual similarity.
cos is recorded at frequency rank #27,810, classified as apron. costa is at rank #885, tagged as anoun, pronounced /ˈkɔʃ.tɐ/.
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 28695, this pair ranks #40,108 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of cos vs costa
Shared letters: cos. Private to "cos": -. Private to "costa": at.
"cos" · 3 letters · shape CVC · "costa" · 5 letters · shape CVCCV
Known mistypes of this pair
- costa ← ccosta · cosat · cossta · costta · cotsa · csota · ocsta
Frequency comparison
Frequently Asked Questions
Can "cos" and "costa" be used interchangeably?
Which is more common, "cos" or "costa"?
Remembering cos vs costa
The fastest way to pick the right one every time.
- Check the role first: if you need a pronoun, it's “cos”; for a noun, it's “costa”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “cos” entry
- Browse more pairs most likely to be confused. Most confusable