Which to use
“cast” is a noun and “cos” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #17,723
- “cast” frequency rank
- #27,810
- “cos” frequency rank
- 45533
- confusion score
Side-by-Side Comparison
| Feature | cast | cos |
|---|---|---|
| Definition | arremesso | qualquer coisa |
Letter map: cast vs cos
Shared letters muted; letters that set cast and cos apart highlighted. Shared run: 2.
Part-of-speech tell for cast / cos
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: cast is anoun and cosapronoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 45533, derived from the frequency rank of both members and their visual similarity.
cast is recorded at frequency rank #17,723, classified as anoun, pronounced /kæst/. cos is at rank #27,810, tagged as apron.
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 45533, this pair ranks #19,851 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of cast vs cos
Shared letters: cs. Private to "cast": at. Private to "cos": o.
"cast" · 4 letters · shape CVCC · "cos" · 3 letters · shape CVC
Known mistypes of this pair
- cast ← acst · casst · castt · ccast · csat
Frequently Asked Questions
Is swapping "cast" for "cos" ever safe?
Which is more common, "cast" or "cos"?
Useful next steps
Pair "cast" vs "cos" is on the table, pick a follow-up below.
- Full dictionary entry for "cast" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cos" - compare definitions side by side with the headword page. Word entry
- This pair ranks #19,851 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "cast" and "cos" also get mixed up with nearby pairs, the highest-scored neighbour is "coin vs cos". 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 #19,851 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.