Which to use
“acera” and “aero” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #14,997
- “acera” frequency rank
- #40,107
- “aero” frequency rank
- 55104
- confusion score
Side-by-Side Comparison
| Feature | acera | aero |
|---|---|---|
| Definition | Orilla de la calle por la que se efectúa el tránsito peatonal. | Aire. |
Where the eye mixes acera and aero
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. acera runs 5 letters (VCVCV) against aero's 4 (VVCV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between acera and aero
A purely visual mix-up. acera ([aˈseɾa]) and aero (/aˈe.ro/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 55104, derived from the frequency rank of both members and their visual similarity.
acera is recorded at frequency rank #14,997, classified as anoun, pronounced [aˈseɾa]. aero is at rank #40,107, tagged as anoun, pronounced /aˈe.ro/.
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 55104, this pair ranks #80,381 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of acera vs aero
Shared letters: aer. Private to "acera": c. Private to "aero": o.
"acera" · 5 letters · shape VCVCV · "aero" · 4 letters · shape VVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "acera" for "aero" ever safe?
Which is more common, "acera" or "aero"?
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 "acera" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aero" - compare definitions side by side with the headword page. Word entry
- This pair ranks #80,381 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "acera" and "aero" also get mixed up with nearby pairs, the highest-scored neighbour is "aero vs alió". 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 #80,381 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.