Which to use
“eco” is a noun and “eso” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #4,414
- “eco” frequency rank
- #50
- “eso” frequency rank
- 4464
- confusion score
Side-by-Side Comparison
| Feature | eco | eso |
|---|---|---|
| Definition | Repetición del sonido causado por la reflexión de la onda sonora al chocar con una superficie rígida. | Forma del neutro de ese. Se emplea para indicar o señalar algo o a alguien próximo al interlocutor, o referirse a una idea o frase que se acaba de mencionar. Designa también algo menos cercano en el tiempo o en el espacio que lo indicado por el pronombre "esto". |
Where the eye mixes eco and eso
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between eco and eso
These two trip readers on the page rather than in the ear: eco is [ˈeko] while eso is [ˈeso]. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - c in “eco” becomes s in “eso”, and the parts of speech differ too (noun vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 4464, derived from the frequency rank of both members and their visual similarity.
eco is recorded at frequency rank #4,414, classified as anoun, pronounced [ˈeko]. eso is at rank #50, tagged as apron, pronounced [ˈeso].
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 4464, this pair ranks #316,029 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of eco vs eso
Shared letters: eo. Private to "eco": c. Private to "eso": s.
"eco" · 3 letters · shape VCV · "eso" · 3 letters · shape VCV
Frequently Asked Questions
Is swapping "eco" for "eso" ever safe?
In ordinary Spanish text, does "eco" or "eso" 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 "eco" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "eso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #316,029 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "eco" and "eso" also get mixed up with nearby pairs, the highest-scored neighbour is "eco vs EPL". Nearby pair
Confusion rank #316,029 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.