castillevsCastilloWhat's the difference?

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

Which to use

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

#19,231
“castille” frequency rank
#34,458
“Castillo” frequency rank
53689
confusion score

Side-by-Side Comparison

Feature castille Castillo
Definition Petite querelle ; débat, différend peu important. Nom de famille.

Letter map: castille vs Castillo

Shared letters muted; letters that set castille and Castillo apart highlighted. Shared run: 7. castille and Castillo follow the identical consonant-vowel pattern (CVCCVCCV). Same shape at a glance is often the real trap, independent of shared letters.

8 ch
castille
8 ch
Castillo

Role in the sentence - castille and Castillo

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: castille is anoun and Castilloaname. On the page they differ by a single letter - e in “castille” becomes o in “Castillo”. Our composite confusion score for this pair is 53689, derived from the frequency rank of both members and their visual similarity.

castille is recorded at frequency rank #19,231, classified as anoun, pronounced \kas.tij\. Castillo is at rank #34,458, tagged as aname.

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 53689, this pair ranks #139,069 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of castille vs Castillo

Shared letters: acilst. Private to "castille": e. Private to "Castillo": o.

"castille" · 8 letters · shape CVCCVCCV  ·  "Castillo" · 8 letters · shape CVCCVCCV

Known mistypes of this pair

  • castille ← acstille · casitlle · casstille · castile · castilel · castlile · casttille · catsille
  • Castillo ← acstillo · casitllo · casstillo · castilo · castilol · castlilo · casttillo · catsillo

Frequently Asked Questions

Is swapping "castille" for "Castillo" ever safe?
No - they are not even the same part of speech. "castille" is a noun and "Castillo" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "castille" vs "Castillo" - which ranks higher?
"castille" is the more common of the two: it sits at frequency rank #19,231 in our French list, against #34,458 for "Castillo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "castille" vs "Castillo" is on the table, pick a follow-up below.

  • Full dictionary entry for "castille" 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 #139,069 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "castille" and "Castillo" also get mixed up with nearby pairs, the highest-scored neighbour is "castillan vs Castillo". 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 #139,069 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list