CastellónvscastilloConfusable pair

Quick tell: Castellón is a name, castillo is a noun, so they fill different roles in a sentence.

Which to use

“Castellón” is a name and “castillo” is a noun - they look or sound alike but fill different roles in a sentence.

#12,543
“Castellón” frequency rank
#2,237
“castillo” frequency rank
14780
confusion score

Side-by-Side Comparison

Feature Castellón 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 Castellón and castillo

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. Castellón runs 9 letters (CVCCVCCVC) against castillo's 8 (CVCCVCCV) - the length gap alone is often enough to separate them once you know to check it.

9 ch
Castellón
8 ch
castillo

Visual trap between Castellón and castillo

These two trip readers on the page rather than in the ear: Castellón is [kast̪eˈʝõn] while castillo is [kasˈt̪iʝo]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 14780, derived from the frequency rank of both members and their visual similarity.

Castellón is recorded at frequency rank #12,543, classified as aname, pronounced [kast̪eˈʝõn]. 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 14780, this pair ranks #282,769 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Castellón vs castillo

Shared letters: aclst. Private to "Castellón": enó. Private to "castillo": io.

"Castellón" · 9 letters · shape CVCCVCCVC  ·  "castillo" · 8 letters · shape CVCCVCCV

Known mistypes of this pair

  • castillo ← acstillo · casitllo · casstillo · castilo · castilol · castlilo · casttillo · catsillo

Frequently Asked Questions

Is swapping "Castellón" for "castillo" ever safe?
No - they are not even the same part of speech. "Castellón" is a name and "castillo" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Castellón" vs "castillo" - which ranks higher?
"castillo" is the more common of the two: it sits at frequency rank #2,237 in our Spanish list, against #12,543 for "Castellón". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "Castellón" 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 #282,769 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "Castellón" and "castillo" also get mixed up with nearby pairs, the highest-scored neighbour is "Castellón 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 #282,769 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