Which to use
“eco” and “era” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #4,414
- “eco” frequency rank
- #65
- “era” frequency rank
- 4479
- confusion score
Side-by-Side Comparison
| Feature | eco | era |
|---|---|---|
| Definition | Repetición del sonido causado por la reflexión de la onda sonora al chocar con una superficie rígida. | Periodo geológico de larga duración. |
Where the eye mixes eco and era
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between eco and era
A purely visual mix-up. eco ([ˈeko]) and era ([ˈeɾa]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 4479, 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]. era is at rank #65, tagged as anoun, pronounced [ˈeɾa].
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 4479, this pair ranks #315,996 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of eco vs era
Shared letters: e. Private to "eco": co. Private to "era": ar.
"eco" · 3 letters · shape VCV · "era" · 3 letters · shape VCV
Frequently Asked Questions
Is swapping "eco" for "era" ever safe?
Frequency check: "eco" vs "era" - which ranks higher?
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 "era" - compare definitions side by side with the headword page. Word entry
- This pair ranks #315,996 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "eco" and "era" also get mixed up with nearby pairs, the highest-scored neighbour is "eco vs EPL". Nearby pair
Confusion rank #315,996 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.