caducavscucaWhat's the difference?

Which to use

“caduca” and “cuca” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#34,921
“caduca” frequency rank
#38,033
“cuca” frequency rank
72954
confusion score

Side-by-Side Comparison

Feature caduca cuca
Definition Epilepsia. Genitales internos y externos —es decir, vagina y vulva— femeninos.

Where the eye mixes caduca and cuca

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. caduca runs 6 letters (CVCVCV) against cuca's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.

6 ch
caduca
4 ch
cuca

Look-alike desk: caduca vs cuca

A purely visual mix-up. caduca ([kaˈð̞uka]) and cuca ([ˈkuka]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 letter(s) in length. Our composite confusion score for this pair is 72954, 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]. cuca is at rank #38,033, tagged as anoun, pronounced [ˈkuka].

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 72954, this pair ranks #24,282 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of caduca vs cuca

Shared letters: acu. Private to "caduca": d. Private to "cuca": -.

"caduca" · 6 letters · shape CVCVCV  ·  "cuca" · 4 letters · shape CVCV

Known mistypes of this pair

  • caduca ← acduca · cadcua · cadduca · caduac · caducca · caudca · ccaduca · cdauca
  • cuca ← ccua · ccuca · cuac · cucca · ucca

Frequently Asked Questions

Do "caduca" and "cuca" mean the same thing in a sentence?
No. They are said differently ([kaˈð̞uka] versus [ˈkuka]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "caduca" vs "cuca" - which ranks higher?
"caduca" is the more common of the two: it sits at frequency rank #34,921 in our Spanish list, against #38,033 for "cuca". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "caduca" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cuca" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #24,282 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "caduca" and "cuca" also get mixed up with nearby pairs, the highest-scored neighbour is "cuc vs cuca". 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 #24,282 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list