caducavscédulaWhich spelling fits?

Which to use

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

#34,921
“caduca” frequency rank
#9,614
“cédula” frequency rank
44535
confusion score

Side-by-Side Comparison

Feature caduca cédula
Definition Epilepsia. Papel o documento oficial, en que se hace constar una deuda, una obligación o cualquier información de este tipo.

Where the eye mixes caduca and cédula

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.

6 ch
caduca
6 ch
cédula

Why the eye confuses caduca with cédula

A purely visual mix-up. caduca ([kaˈð̞uka]) and cédula ([ˈseð̞ula]) 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 44535, 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]. cédula is at rank #9,614, tagged as anoun, pronounced [ˈseð̞ula].

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 44535, this pair ranks #136,527 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of caduca vs cédula

Shared letters: acdu. Private to "caduca": -. Private to "cédula": .

"caduca" · 6 letters · shape CVCVCV  ·  "cédula" · 6 letters · shape CVCVCV

Known mistypes of this pair

  • caducaacduca · cadcua · cadduca · caduac · caducca · caudca · ccaduca · cdauca

Frequently Asked Questions

Can "caduca" and "cédula" be used interchangeably?
No. They are said differently ([kaˈð̞uka] versus [ˈseð̞ula]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "caduca" or "cédula" show up more?
"cédula" is the more common of the two: it sits at frequency rank #9,614 in our Spanish list, against #34,921 for "caduca". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "caduca" and "cédula" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "caduca" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cédula" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #136,527 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "caduca" and "cédula" 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 #136,527 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