Which to use
“caduca” and “casaca” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #34,921
- “caduca” frequency rank
- #33,009
- “casaca” frequency rank
- 67930
- confusion score
Side-by-Side Comparison
| Feature | caduca | casaca |
|---|---|---|
| Definition | Epilepsia. | Vestidura por el estilo del frac, para llevar ceñida, con cuello derecho y abotonada comúnmente toda por delante, con airosos faldones por detrás. Suele servir de uniforme, por lo cual lleva vivos de otro color y a veces bordados. |
Where the eye mixes caduca and casaca
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. caduca and casaca follow the identical consonant-vowel pattern (CVCVCV). Same shape at a glance is often the real trap, independent of shared letters.
Visual trap between caduca and casaca
A purely visual mix-up. caduca ([kaˈð̞uka]) and casaca ([kaˈsaka]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 67930, derived from the frequency rank of both members and their visual similarity.
caduca is recorded at frequency rank #34,921, classified as anoun, pronounced [kaˈð̞uka]. casaca is at rank #33,009, tagged as anoun, pronounced [kaˈsaka].
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 67930, this pair ranks #35,831 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of caduca vs casaca
Shared letters: ac. Private to "caduca": du. Private to "casaca": s.
"caduca" · 6 letters · shape CVCVCV · "casaca" · 6 letters · shape CVCVCV
Known mistypes of this pair
Frequently Asked Questions
Can "caduca" and "casaca" be used interchangeably?
Frequency check: "caduca" vs "casaca" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "caduca" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "casaca" - compare definitions side by side with the headword page. Word entry
- This pair ranks #35,831 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "caduca" and "casaca" also get mixed up with nearby pairs, the highest-scored neighbour is "caduca vs caduco". 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 #35,831 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.