Which to use
“cartilla” and “costilla” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #26,749
- “cartilla” frequency rank
- #21,283
- “costilla” frequency rank
- 48032
- confusion score
Side-by-Side Comparison
| Feature | cartilla | costilla |
|---|---|---|
| Definition | Cuaderno pequeño, impreso, que contiene las letras del alfabeto y los primeros rudimentos para aprender a leer. | Hueso largo y curvo que da forma y estructura al tórax |
Where the eye mixes cartilla and costilla
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. cartilla and costilla follow the identical consonant-vowel pattern (CVCCVCCV). Same shape at a glance is often the real trap, independent of shared letters.
Why the eye confuses cartilla with costilla
A purely visual mix-up. cartilla ([kaɾˈt̪iʝa]) and costilla ([kosˈt̪iʝa]) 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 48032, 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]. costilla is at rank #21,283, tagged as anoun, pronounced [kosˈt̪iʝa].
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 48032, this pair ranks #116,698 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of cartilla vs costilla
Shared letters: acilt. Private to "cartilla": r. Private to "costilla": os.
"cartilla" · 8 letters · shape CVCCVCCV · "costilla" · 8 letters · shape CVCCVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "cartilla" for "costilla" ever safe?
Frequency check: "cartilla" vs "costilla" - which ranks higher?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "cartilla" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "costilla" - compare definitions side by side with the headword page. Word entry
- This pair ranks #116,698 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "cartilla" and "costilla" 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 #116,698 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.