castañavsCastañosWhat's the difference?

Quick tell: castaña is a noun, Castaños is a name, so they fill different roles in a sentence.

Which to use

“castaña” is a noun and “Castaños” is a name - they look or sound alike but fill different roles in a sentence.

#29,530
“castaña” frequency rank
#29,967
“Castaños” frequency rank
59497
confusion score

Side-by-Side Comparison

Feature castaña Castaños
Definition Fruto del castaño (Castanea spp.), una núcula de tres a cuatro cm de diámetro, recubierta de una cúpula espinosa. Son muy sabrosas y nutritivas, consumiéndose asadas, hervidas, confitadas o como harina. Apellido.

Where the eye mixes castaña and Castaños

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence. castaña 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.

7 ch
castaña
8 ch
Castaños

Look-alike desk: castaña vs Castaños

These two trip readers on the page rather than in the ear: castaña is [kasˈt̪aɲa] while Castaños is [kasˈt̪aɲos]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 59497, derived from the frequency rank of both members and their visual similarity.

castaña is recorded at frequency rank #29,530, classified as anoun, pronounced [kasˈt̪aɲa]. 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 59497, this pair ranks #62,383 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of castaña vs Castaños

Shared letters: acstñ. Private to "castaña": -. Private to "Castaños": o.

"castaña" · 7 letters · shape CVCCVCV  ·  "Castaños" · 8 letters · shape CVCCVCVC

Frequently Asked Questions

Is swapping "castaña" for "Castaños" ever safe?
No - they are not even the same part of speech. "castaña" is a noun and "Castaños" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "castaña" vs "Castaños" - which ranks higher?
"castaña" is the more common of the two: it sits at frequency rank #29,530 in our Spanish list, against #29,967 for "Castaños". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "castaña" and "Castaños" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "castaña" 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 #62,383 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "castaña" and "Castaños" also get mixed up with nearby pairs, the highest-scored neighbour is "casará vs castaña". Nearby pair

Confusion rank #62,383 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list