Which to use
“casos” is a noun and “casto” is an adjective - they look or sound alike but fill different roles in a sentence.
- #466
- “casos” frequency rank
- #44,616
- “casto” frequency rank
- 45082
- confusion score
Side-by-Side Comparison
| Feature | casos | casto |
|---|---|---|
| Definition | Forma del plural de caso. | Persona que se abstiene de todo goce sexual o lo vive de acuerdo a ciertas directrices dictadas por su religión o su moral. |
Where the eye mixes casos and casto
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. casos (CVCVC) and casto (CVCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses casos with casto
These two trip readers on the page rather than in the ear: casos is [ˈkasos] while casto is [ˈkast̪o]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 45082, derived from the frequency rank of both members and their visual similarity.
casos is recorded at frequency rank #466, classified as anoun, pronounced [ˈkasos]. casto is at rank #44,616, tagged as anadj, pronounced [ˈkast̪o].
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 45082, this pair ranks #133,502 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of casos vs casto
Shared letters: acos. Private to "casos": -. Private to "casto": t.
"casos" · 5 letters · shape CVCVC · "casto" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "casos" for "casto" ever safe?
In ordinary Spanish text, does "casos" or "casto" show up more?
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 "casos" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "casto" - compare definitions side by side with the headword page. Word entry
- This pair ranks #133,502 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "casos" and "casto" also get mixed up with nearby pairs, the highest-scored neighbour is "casto vs Chasco". 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 #133,502 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.