cadavscasWhich spelling fits?

Quick tell: cada is a adjective, cas is a noun, so they fill different roles in a sentence.

Which to use

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

#89
“cada” frequency rank
#19,656
“cas” frequency rank
19745
confusion score

Side-by-Side Comparison

Feature cada cas
Definition Designa una cosa o persona entre varias o entre una serie de ellas. Caso.

Where the eye mixes cada and cas

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

4 ch
cada
3 ch
cas

Visual trap between cada and cas

These two trip readers on the page rather than in the ear: cada is [ˈkað̞a] while cas is [ˈkas]. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 19745, derived from the frequency rank of both members and their visual similarity.

cada is recorded at frequency rank #89, classified as anadj, pronounced [ˈkað̞a]. 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 19745, this pair ranks #262,368 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of cada vs cas

Shared letters: ac. Private to "cada": d. Private to "cas": s.

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

Known mistypes of this pair

  • cadaacda · caad · cadda · ccada · cdaa

Frequently Asked Questions

Do "cada" and "cas" mean the same thing in a sentence?
No - they are not even the same part of speech. "cada" is an adjective and "cas" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "cada" vs "cas" - which ranks higher?
"cada" is the more common of the two: it sits at frequency rank #89 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.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "cada" 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 #262,368 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "cada" 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 #262,368 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