Castile
/kasˈtiːɫ/
"castile" is a 7-letter English headword indexed on PlainSpell.
The verdict
“Castile” is a moderately-common English word, ranked #33,165 in English word frequency and used as a proper noun.
- #33,165
- frequency rank, English
- 7
- letters
- 10
- tracked misspellings
- 7
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A medieval kingdom and former county in the Iberian Peninsula; the nucleus of modern Spain.
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | Castile |
| Language | English |
| Part of speech | Proper noun |
| IPA | /kasˈtiːɫ/ |
| Letters | 7 |
| Frequency rank | #33,165 |
| Misspellings tracked | 10 |
| Confusable pairs | 7 |
| Source | Wiktionary (kaikki.org) |
Where “Castile” sits in English frequency
Spelling & Dictionary Insight
The English entry for Castile is 7 letters long, classified as a proper noun, and transcribed in the International Phonetic Alphabet as /kasˈtiːɫ/. Corpus data places it at rank #33,165 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 3 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 10 likely wrong-spelling variants for Castile, with forms such as "acstile", "casitle", and "casstile". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 7 confusable-pair relationships, "castle", "cattle", "casting", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: From (possibly through a Middle French form) Spanish Castilla from Old Spanish Castiella from Medieval Latin Castella from the plural of Latin castellum (“castle, fort, citadel”), diminutive of castrum (“fortress”); supposedly derived from the many castles … The correct English form is Castile, spelled C-A-S-T-I-L-E.
Definition
- 1A medieval kingdom and former county in the Iberian Peninsula; the nucleus of modern Spain.
- 2A vaguely defined geographical region of central Spain generally corresponding to the regions of Old and New Castile.
- 3A town and village therein, in Wyoming County, New York, United States, named after Castile in Spain.
Etymology
From (possibly through a Middle French form) Spanish Castilla from Old Spanish Castiella from Medieval Latin Castella from the plural of Latin castellum (“castle, fort, citadel”), diminutive of castrum (“fortress”); supposedly derived from the many castles constructed in the region.
This word in other languages
Common misspellings
Also misspelled as: acstile,casitle,casstile,castiel,castille,castlie,casttile,catsile,ccastile,csatile
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of Castile - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.
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 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "Castile"?
What does "Castile" mean?
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Using “Castile”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is C-A-S-T-I-L-E - every other letter order is a misspelling in standard orthography.
- Say it as /kasˈtiːɫ/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “castle” - see the side-by-side comparison. Castile vs castle
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.