cartillavscastilloWhich spelling fits?

Which to use

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

#26,749
“cartilla” frequency rank
#2,237
“castillo” frequency rank
28986
confusion score

Side-by-Side Comparison

Feature cartilla castillo
Definition Cuaderno pequeño, impreso, que contiene las letras del alfabeto y los primeros rudimentos para aprender a leer. Recinto fortificado, típico de la arquitectura militar del Medioevo, en especial el dotado de murallas y torres para su defensa

Where the eye mixes cartilla and castillo

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. cartilla and castillo follow the identical consonant-vowel pattern (CVCCVCCV). Same shape at a glance is often the real trap, independent of shared letters.

8 ch
cartilla
8 ch
castillo

Look-alike desk: cartilla vs castillo

A purely visual mix-up. cartilla ([kaɾˈt̪iʝa]) and castillo ([kasˈt̪iʝo]) 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 28986, derived from the frequency rank of both members and their visual similarity.

cartilla is recorded at frequency rank #26,749, classified as anoun, pronounced [kaɾˈt̪iʝa]. castillo is at rank #2,237, tagged as anoun, pronounced [kasˈt̪iʝo].

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 28986, this pair ranks #219,273 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cartilla vs castillo

Shared letters: acilt. Private to "cartilla": r. Private to "castillo": os.

"cartilla" · 8 letters · shape CVCCVCCV  ·  "castillo" · 8 letters · shape CVCCVCCV

Known mistypes of this pair

  • cartilla ← acrtilla · caritlla · carrtilla · cartila · cartilal · cartlila · carttilla · catrilla
  • castillo ← acstillo · casitllo · casstillo · castilo · castilol · castlilo · casttillo · catsillo

Frequently Asked Questions

Is swapping "cartilla" for "castillo" ever safe?
No. They are said differently ([kaɾˈt̪iʝa] versus [kasˈt̪iʝo]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "cartilla" or "castillo"?
"castillo" is the more common of the two: it sits at frequency rank #2,237 in our Spanish list, against #26,749 for "cartilla". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "cartilla" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "castillo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #219,273 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "cartilla" and "castillo" also get mixed up with nearby pairs, the highest-scored neighbour is "canilla vs cartilla". 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 #219,273 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