cajavscasConfusable pair

Which to use

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

#1,306
“caja” frequency rank
#19,656
“cas” frequency rank
20962
confusion score

Side-by-Side Comparison

Feature caja cas
Definition Recipiente rectangular cerrable, generalmente con tapa, en el cual se pueden guardar otros objetos. Caso.

Where the eye mixes caja and cas

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
caja
3 ch
cas

Look-alike desk: caja vs cas

A purely visual mix-up. caja ([ˈkaxa]) and cas ([ˈkas]) 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 20962, derived from the frequency rank of both members and their visual similarity.

caja is recorded at frequency rank #1,306, classified as anoun, pronounced [ˈkaxa]. cas is at rank #19,656, tagged as anoun, pronounced [ˈkas].

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 20962, this pair ranks #256,995 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of caja vs cas

Shared letters: ac. Private to "caja": j. Private to "cas": s.

"caja" · 4 letters · shape CVCV  ·  "cas" · 3 letters · shape CVC

Known mistypes of this pair

  • cajaacja · caaj · cajja · ccaja · cjaa

Frequently Asked Questions

Is swapping "caja" for "cas" ever safe?
No. They are said differently ([ˈkaxa] versus [ˈkas]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "caja" vs "cas" - which ranks higher?
"caja" is the more common of the two: it sits at frequency rank #1,306 in our Spanish list, against #19,656 for "cas". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "caja" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cas" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #256,995 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "caja" and "cas" also get mixed up with nearby pairs, the highest-scored neighbour is "cas vs cuc". 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 #256,995 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