Which to use
“aca” is a noun and “aes” is an adjective - they look or sound alike but fill different roles in a sentence.
- #3,222
- “aca” frequency rank
- #43,355
- “aes” frequency rank
- 46577
- confusion score
Side-by-Side Comparison
| Feature | aca | aes |
|---|---|---|
| Definition | Residuo sólido indigerible del bolo alimenticio, que se excreta a través del ano. | Fácil. |
Where the eye mixes aca and aes
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: aca vs aes
These two trip readers on the page rather than in the ear: aca is [ˈaka] while aes is [ˈɛːs]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 46577, 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]. aes is at rank #43,355, tagged as anadj, pronounced [ˈɛːs].
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 46577, this pair ranks #124,934 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of aca vs aes
Shared letters: a. Private to "aca": c. Private to "aes": es.
"aca" · 3 letters · shape VCV · "aes" · 3 letters · shape VVC
Frequently Asked Questions
Can "aca" and "aes" be used interchangeably?
Which is more common, "aca" or "aes"?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "aca" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aes" - compare definitions side by side with the headword page. Word entry
- This pair ranks #124,934 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "aca" and "aes" also get mixed up with nearby pairs, the highest-scored neighbour is "aes vs apis". Nearby pair
Confusion rank #124,934 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.