castavscostWhat's the difference?

Which to use

“casta” and “cost” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#10,994
“casta” frequency rank
#21,956
“cost” frequency rank
32950
confusion score

Side-by-Side Comparison

Feature casta cost
Definition Grupo unido por una ascendencia común. Costo.

Where the eye mixes casta and cost

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
casta
4 ch
cost

Look-alike desk: casta vs cost

A purely visual mix-up. casta ([ˈkast̪a]) and cost ([ˈkɔst]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 32950, derived from the frequency rank of both members and their visual similarity.

casta is recorded at frequency rank #10,994, classified as anoun, pronounced [ˈkast̪a]. cost is at rank #21,956, tagged as anoun, pronounced [ˈkɔst].

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 32950, this pair ranks #199,350 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of casta vs cost

Shared letters: cst. Private to "casta": a. Private to "cost": o.

"casta" · 5 letters · shape CVCCV  ·  "cost" · 4 letters · shape CVCC

Known mistypes of this pair

  • castaacsta · casat · cassta · castta · catsa · ccasta · csata
  • costccost · cosst · costt · cots · csot · ocst

Frequently Asked Questions

Can "casta" and "cost" be used interchangeably?
No. They are said differently ([ˈkast̪a] versus [ˈkɔst]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "casta" vs "cost" - which ranks higher?
"casta" is the more common of the two: it sits at frequency rank #10,994 in our Spanish list, against #21,956 for "cost". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "casta" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cost" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #199,350 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "casta" and "cost" also get mixed up with nearby pairs, the highest-scored neighbour is "cost vs count". 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 #199,350 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