Which to use
“caído” is an adjective and “caso” is a conjunction - they look or sound alike but fill different roles in a sentence.
- #8,017
- “caído” frequency rank
- #181
- “caso” frequency rank
- 8198
- confusion score
Side-by-Side Comparison
| Feature | caído | caso |
|---|---|---|
| Definition | que caiu | na hipótese de; se |
Letter map: caído vs caso
Shared letters muted; letters that set caído and caso apart highlighted. Shared run: 3. caído runs 5 letters (CVVCV) against caso's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.
Role in the sentence - caído and caso
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: caído is anadjective and casoaconjunction. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 8198, derived from the frequency rank of both members and their visual similarity.
caído is recorded at frequency rank #8,017, classified as anadj. caso is at rank #181, tagged as aconj, pronounced /ˈka.zu/.
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 8198, this pair ranks #65,666 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of caído vs caso
Shared letters: aco. Private to "caído": dí. Private to "caso": s.
"caído" · 5 letters · shape CVVCV · "caso" · 4 letters · shape CVCV
Known mistypes of this pair
- caso ← acso · casso · ccaso · csao
Frequently Asked Questions
Can "caído" and "caso" be used interchangeably?
Which is more common, "caído" or "caso"?
Useful next steps
You've compared "caído" and "caso". Here's where to go from here.
- Full dictionary entry for "caído" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "caso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #65,666 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "caído" and "caso" also get mixed up with nearby pairs, the highest-scored neighbour is "caído 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 #65,666 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.