Which to use
“castaño” is a noun and “Castaños” is a name - they look or sound alike but fill different roles in a sentence.
- #12,542
- “castaño” frequency rank
- #29,967
- “Castaños” frequency rank
- 42509
- confusion score
Side-by-Side Comparison
| Feature | castaño | Castaños |
|---|---|---|
| Definition | (Castanea sativa) Árbol robusto de la familia de las fagáceas de tronco grueso, con corteza lisa al principio y agrietada al envejecer. Las hojas son lanceoladas, largas, brillantes y con el margen dentado. En la base de las inflorescencias masculinas se hallan las femeninas. Su fruto las castañas que en número de dos o tres se encuentran encerradas por un envoltorio espinoso llamado erizo. | Apellido. |
Where the eye mixes castaño and Castaños
Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. castaño runs 7 letters (CVCCVCV) against Castaños's 8 (CVCCVCVC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: castaño vs Castaños
These two trip readers on the page rather than in the ear: castaño is [kasˈt̪aɲo] while Castaños is [kasˈt̪aɲos]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 extra letter(s) - “castaño” sits inside “Castaños”, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 42509, derived from the frequency rank of both members and their visual similarity.
castaño is recorded at frequency rank #12,542, classified as anoun, pronounced [kasˈt̪aɲo]. Castaños is at rank #29,967, tagged as aname, pronounced [kasˈt̪aɲos].
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 42509, this pair ranks #147,796 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of castaño vs Castaños
Shared letters: acostñ. Private to "castaño": -. Private to "Castaños": -.
"castaño" · 7 letters · shape CVCCVCV · "Castaños" · 8 letters · shape CVCCVCVC
Frequently Asked Questions
Is swapping "castaño" for "Castaños" ever safe?
Frequency check: "castaño" vs "Castaños" - which ranks higher?
Useful next steps
Eye-level mix-up between "castaño" and "Castaños" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "castaño" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Castaños" - compare definitions side by side with the headword page. Word entry
- This pair ranks #147,796 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "castaño" and "Castaños" also get mixed up with nearby pairs, the highest-scored neighbour is "cántaros vs Castaños". Nearby pair
Confusion rank #147,796 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.