Which to use
“caso” is a conjunction and “co” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #181
- “caso” frequency rank
- #2,005
- “co” frequency rank
- 2186
- confusion score
Side-by-Side Comparison
| Feature | caso | co |
|---|---|---|
| Definition | na hipótese de; se | que |
Letter map: caso vs co
Shared letters muted; letters that set caso and co apart highlighted. Shared run: 2.
Part-of-speech tell for caso / co
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: caso is aconjunction and coapronoun. On the page they differ by 2 letter(s) in length. Our composite confusion score for this pair is 2186, derived from the frequency rank of both members and their visual similarity.
caso is recorded at frequency rank #181, classified as aconj, pronounced /ˈka.zu/. co is at rank #2,005, 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 2186, this pair ranks #73,290 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of caso vs co
Shared letters: co. Private to "caso": as. Private to "co": -.
"caso" · 4 letters · shape CVCV · "co" · 2 letters · shape CV
Known mistypes of this pair
- caso ← acso · casso · ccaso · csao
Frequently Asked Questions
Can "caso" and "co" be used interchangeably?
Which is more common, "caso" or "co"?
After this comparison
Done with this confusable. These links stay specific to "caso" and "co".
- Full dictionary entry for "caso" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "co" - compare definitions side by side with the headword page. Word entry
- This pair ranks #73,290 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "caso" and "co" also get mixed up with nearby pairs, the highest-scored neighbour is "ciao vs co". 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 #73,290 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.