Castrillo

[kasˈt̪ɾiʝo]

/[kasˈt̪ɾiʝo]/ name

The verdict

“Castrillo” is uncommon Spanish (frequency #59,078 among 8,288 “C” headwords), classed as a proper noun. The kind of spelling people second-guess.

#59,078
frequency rank, Spanish
8,288
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Apellido.

Corpus desk

Index ES-castrillo · Castrillo · Spanish

Castrillo · rank #59,078 · 0 variants · 0 confusables

  • FREQ-RARE #59,078
  • LEN-LONG 9 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 8,288
  • PHOTO-FINISH Castejón

Nearest frequency peer: Castejón (-1 rank slots)

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rangos de cola larga cerca de “Castrillo”

Banda escasa: las barras invierten el rango para que lo raro se lea más corto

corpus weight

What this shows Vista de cola larga: dónde “Castrillo” se sitúa frente a rangos españoles igualmente raros.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for Castrillo
PropertyValue
HeadwordCastrillo
LanguageSpanish
Part of speechProper noun
IPA[kasˈt̪ɾiʝo]
Letters9
Frequency rank#59,078
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Cola larga: rango de “Castrillo” en español

Esta escala corre desde el núcleo del español cotidiano (izquierda) hasta el rastro de formas rara vez usadas (derecha).Castrillocae en esta cola de rareza:

#1#100#1K#10K#100K
← used constantlyrarely used →

El eje es logarítmico: cada tick marca unas diez veces menos frecuencia. Vecinos raros de la misma franja: “Castejón” (#59,077), “cargará” (#59,076), “cazaba” (#59,080). Entre 8,288 lemas con “C”, “Castrillo” va en #59,078. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Castrillo is uncommon Spanish at frequency #59,078 among 8,288 “C” headwords, classed as aproper noun, transcribed [kasˈt̪ɾiʝo]. Rarity is why readers land here mid-draft. Gloss: "Apellido.".

Zero misspellings are on record for Castrillo in our index, which points to an orthography that plays by predictable Spanish rules. We don't track a confusable pairing for this entry, since no other headword is close enough in sound or shape to pair with it.

This entry's etymology isn't recorded, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct Spanish form is Castrillo, spelled C-A-S-T-R-I-L-L-O.

Definition

  1. 1
    Apellido.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 Spanish corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "Castrillo"?
"Castrillo" is spelled C-A-S-T-R-I-L-L-O. The IPA pronunciation is [kasˈt̪ɾiʝo].
What does "Castrillo" mean?
As a proper noun, "Castrillo" means: Apellido.
How do you pronounce "Castrillo"?
The IPA (International Phonetic Alphabet) transcription for "Castrillo" is [kasˈt̪ɾiʝo]. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "Castrillo" come from?
"Castrillo" is a Spanish word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar Spanish words by spelling shape

Same letter count and similar misspelling depth for "Castrillo", not the corpus desk frequency band.

Same letter count

Frequency-ranked Spanish headwords with 9 letters (nearest by frequency rank).

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list