Which to use
“caso” and “co” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #157
- “caso” frequency rank
- #2,386
- “co” frequency rank
- 2543
- confusion score
Side-by-Side Comparison
| Feature | caso | co |
|---|---|---|
| Definition | Cada una de varias instancias consideradas como pertenecientes a un mismo tipo de situaciones o cosas (como los casos de una enfermedad, etc.). | Chico, ese o tío. |
Where the eye mixes caso and co
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between caso and co
A purely visual mix-up. caso ([ˈkaso]) and co ([ˈko]) 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 2 letter(s) in length. Our composite confusion score for this pair is 2543, derived from the frequency rank of both members and their visual similarity.
caso is recorded at frequency rank #157, classified as anoun, pronounced [ˈkaso]. co is at rank #2,386, tagged as anoun, pronounced [ˈko].
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 2543, this pair ranks #320,102 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of caso vs co
Shared letters: co. Private to "caso": as. Private to "co": -.
"caso" · 4 letters · shape CVCV · "co" · 2 letters · shape CV
Known mistypes of this pair
- caso ← acso · casso · ccaso · csao
Frequently Asked Questions
Can "caso" and "co" be used interchangeably?
Which is more common, "caso" or "co"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "caso" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "co" - compare definitions side by side with the headword page. Word entry
- This pair ranks #320,102 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "caso" and "co" also get mixed up with nearby pairs, the highest-scored neighbour is "co 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 #320,102 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.