Which to use
“aca” and “aj” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #3,222
- “aca” frequency rank
- #21,891
- “aj” frequency rank
- 25113
- confusion score
Side-by-Side Comparison
| Feature | aca | aj |
|---|---|---|
| Definition | Residuo sólido indigerible del bolo alimenticio, que se excreta a través del ano. | Síndrome o enfermedad crónica, causada por la vejez u otra condición estable. |
Where the eye mixes aca and aj
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Look-alike desk: aca vs aj
A purely visual mix-up. aca ([ˈaka]) and aj ([ˈaks]) 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 25113, 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]. aj is at rank #21,891, tagged as anoun, pronounced [ˈaks].
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 25113, this pair ranks #237,945 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of aca vs aj
Shared letters: a. Private to "aca": c. Private to "aj": j.
"aca" · 3 letters · shape VCV · "aj" · 2 letters · shape VC
Frequently Asked Questions
Do "aca" and "aj" mean the same thing in a sentence?
In ordinary Spanish text, does "aca" or "aj" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "aca" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aj" - compare definitions side by side with the headword page. Word entry
- This pair ranks #237,945 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "aca" and "aj" also get mixed up with nearby pairs, the highest-scored neighbour is "aj vs atl". Nearby pair
Confusion rank #237,945 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.