Which to use
“casar” is a verb and “casto” is an adjective - they look or sound alike but fill different roles in a sentence.
- #8,771
- “casar” frequency rank
- #44,616
- “casto” frequency rank
- 53387
- confusion score
Side-by-Side Comparison
| Feature | casar | casto |
|---|---|---|
| Definition | Anular. | 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 casar and casto
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. casar (CVCVC) and casto (CVCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Look-alike desk: casar vs casto
These two trip readers on the page rather than in the ear: casar is [kaˈsaɾ] 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 (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 53387, derived from the frequency rank of both members and their visual similarity.
casar is recorded at frequency rank #8,771, classified as averb, pronounced [kaˈsaɾ]. 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 53387, this pair ranks #88,120 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of casar vs casto
Shared letters: acs. Private to "casar": r. Private to "casto": ot.
"casar" · 5 letters · shape CVCVC · "casto" · 5 letters · shape CVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "casar" for "casto" ever safe?
In ordinary Spanish text, does "casar" or "casto" show up more?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "casar" 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 #88,120 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "casar" 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 #88,120 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.