casitasvscastasWhich spelling fits?

Quick tell: casitas is a noun, castas is an adjective, so they fill different roles in a sentence.

Which to use

“casitas” is a noun and “castas” is an adjective - they look or sound alike but fill different roles in a sentence.

#31,254
“casitas” frequency rank
#17,066
“castas” frequency rank
48320
confusion score

Side-by-Side Comparison

Feature casitas castas
Definition Forma del plural de casita. Forma del femenino plural de casto.

Where the eye mixes casitas and castas

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. casitas runs 7 letters (CVCVCVC) against castas's 6 (CVCCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
casitas
6 ch
castas

Visual trap between casitas and castas

These two trip readers on the page rather than in the ear: casitas is [kaˈsit̪as] while castas is [ˈkast̪as]. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 48320, derived from the frequency rank of both members and their visual similarity.

casitas is recorded at frequency rank #31,254, classified as anoun, pronounced [kaˈsit̪as]. castas is at rank #17,066, tagged as anadj, pronounced [ˈkast̪as].

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 48320, this pair ranks #115,147 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of casitas vs castas

Shared letters: acst. Private to "casitas": i. Private to "castas": -.

"casitas" · 7 letters · shape CVCVCVC  ·  "castas" · 6 letters · shape CVCCVC

Known mistypes of this pair

  • casitas ← acsitas · cacitas · caistas · casiats · casitass · casitsa · casittas · cassitas
  • castas ← acstas · casats · casstas · castass · castsa · casttas · catsas · ccastas

Frequently Asked Questions

Is swapping "casitas" for "castas" ever safe?
No - they are not even the same part of speech. "casitas" is a noun and "castas" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "casitas" or "castas" show up more?
"castas" is the more common of the two: it sits at frequency rank #17,066 in our Spanish list, against #31,254 for "casitas". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "casitas" and "castas" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "casitas" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "castas" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #115,147 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "casitas" and "castas" also get mixed up with nearby pairs, the highest-scored neighbour is "canicas vs casitas". 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 #115,147 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