Which to use
“aca” is a noun and “ae” is an adverb - they look or sound alike but fill different roles in a sentence.
- #3,222
- “aca” frequency rank
- #20,556
- “ae” frequency rank
- 23778
- confusion score
Side-by-Side Comparison
| Feature | aca | ae |
|---|---|---|
| Definition | Residuo sólido indigerible del bolo alimenticio, que se excreta a través del ano. | Por causa de. |
Where the eye mixes aca and ae
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Visual trap between aca and ae
These two trip readers on the page rather than in the ear: aca is [ˈaka] while ae is /aˈe/. 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 adverb), which is usually the fastest check. Our composite confusion score for this pair is 23778, derived from the frequency rank of both members and their visual similarity.
aca is recorded at frequency rank #3,222, classified as anoun, pronounced [ˈaka]. ae is at rank #20,556, tagged as anadv, pronounced /aˈe/.
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 23778, this pair ranks #244,198 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of aca vs ae
Shared letters: a. Private to "aca": c. Private to "ae": e.
"aca" · 3 letters · shape VCV · "ae" · 2 letters · shape VV
Frequently Asked Questions
Is swapping "aca" for "ae" ever safe?
In ordinary Spanish text, does "aca" or "ae" show up more?
After this comparison
Eye-level mix-up between "aca" and "ae" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "aca" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ae" - compare definitions side by side with the headword page. Word entry
- This pair ranks #244,198 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "aca" and "ae" also get mixed up with nearby pairs, the highest-scored neighbour is "abed vs ae". Nearby pair
Confusion rank #244,198 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.