Which to use
“Castells” is a name and “castillo” is a noun - they look or sound alike but fill different roles in a sentence.
- #45,185
- “Castells” frequency rank
- #2,237
- “castillo” frequency rank
- 47422
- confusion score
Side-by-Side Comparison
| Feature | Castells | castillo |
|---|---|---|
| Definition | Apellido. | Recinto fortificado, típico de la arquitectura militar del Medioevo, en especial el dotado de murallas y torres para su defensa |
Where the eye mixes Castells and castillo
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Look-alike desk: Castells vs castillo
These two trip readers on the page rather than in the ear: Castells is [kasˈt̪eʝs] while castillo is [kasˈt̪iʝo]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 47422, derived from the frequency rank of both members and their visual similarity.
Castells is recorded at frequency rank #45,185, classified as aname, pronounced [kasˈt̪eʝs]. 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 47422, this pair ranks #120,150 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of Castells vs castillo
Shared letters: aclst. Private to "Castells": e. Private to "castillo": io.
"Castells" · 8 letters · shape CVCCVCCC · "castillo" · 8 letters · shape CVCCVCCV
Known mistypes of this pair
Frequently Asked Questions
Can "Castells" and "castillo" be used interchangeably?
Frequency check: "Castells" vs "castillo" - 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 "Castells" 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 #120,150 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "Castells" and "castillo" also get mixed up with nearby pairs, the highest-scored neighbour is "Castell vs Castells". 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 #120,150 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.