Which to use
“caso” is a conjunction and “curso” is a noun - they look or sound alike but fill different roles in a sentence.
- #181
- “caso” frequency rank
- #847
- “curso” frequency rank
- 1028
- confusion score
Side-by-Side Comparison
| Feature | caso | curso |
|---|---|---|
| Definition | na hipótese de; se | conjunto de disciplinas onde alunos se matriculam para aprender um determinado tema |
Where the eye mixes caso and curso
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Look-alike desk: caso vs curso
These two trip readers on the page rather than in the ear: caso is /ˈka.zu/ while curso is /ˈkuɾ.su/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (conjunction vs noun), which is usually the fastest check. Our composite confusion score for this pair is 1028, 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/. curso is at rank #847, tagged as anoun, pronounced /ˈkuɾ.su/.
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 1028, this pair ranks #74,604 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of caso vs curso
Shared letters: cos. Private to "caso": a. Private to "curso": ru.
"caso" · 4 letters · shape CVCV · "curso" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Can "caso" and "curso" be used interchangeably?
Frequency check: "caso" vs "curso" - which ranks higher?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "caso" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "curso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #74,604 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "caso" and "curso" also get mixed up with nearby pairs, the highest-scored neighbour is "caso vs ciao". 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 #74,604 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.