Which to use
“cas” and “cup” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #19,656
- “cas” frequency rank
- #9,436
- “cup” frequency rank
- 29092
- confusion score
Side-by-Side Comparison
| Feature | cas | cup |
|---|---|---|
| Definition | Caso. | Taza. |
Where the eye mixes cas and cup
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses cas with cup
A purely visual mix-up. cas ([ˈkas]) and cup (/kʌp/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 29092, derived from the frequency rank of both members and their visual similarity.
cas is recorded at frequency rank #19,656, classified as anoun, pronounced [ˈkas]. cup is at rank #9,436, tagged as anoun, pronounced /kʌp/.
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 29092, this pair ranks #218,729 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of cas vs cup
Shared letters: c. Private to "cas": as. Private to "cup": pu.
"cas" · 3 letters · shape CVC · "cup" · 3 letters · shape CVC
Frequently Asked Questions
Is swapping "cas" for "cup" ever safe?
In ordinary Spanish text, does "cas" or "cup" show up more?
Useful next steps
Eye-level mix-up between "cas" and "cup" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "cas" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "cup" - compare definitions side by side with the headword page. Word entry
- This pair ranks #218,729 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "cas" and "cup" also get mixed up with nearby pairs, the highest-scored neighbour is "cas vs cuc". Nearby pair
Confusion rank #218,729 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.