Which to use
“aes” is an adjective and “aux” is a contraction - they look or sound alike but fill different roles in a sentence.
- #43,355
- “aes” frequency rank
- #32,511
- “aux” frequency rank
- 75866
- confusion score
Side-by-Side Comparison
| Feature | aes | aux |
|---|---|---|
| Definition | Fácil. | Contracción de la preposición à y el artículo les; a las ; a los. |
Where the eye mixes aes and aux
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. aes and aux follow the identical consonant-vowel pattern (VVC). Same shape at a glance is often the real trap, independent of shared letters.
Why the eye confuses aes with aux
These two trip readers on the page rather than in the ear: aes is [ˈɛːs] while aux is /o/. 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 (adjective vs contraction), which is usually the fastest check. Our composite confusion score for this pair is 75866, derived from the frequency rank of both members and their visual similarity.
aes is recorded at frequency rank #43,355, classified as anadj, pronounced [ˈɛːs]. aux is at rank #32,511, tagged as acontraction, pronounced /o/.
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 75866, this pair ranks #18,760 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of aes vs aux
Shared letters: a. Private to "aes": es. Private to "aux": ux.
"aes" · 3 letters · shape VVC · "aux" · 3 letters · shape VVC
Frequently Asked Questions
Do "aes" and "aux" mean the same thing in a sentence?
In ordinary Spanish text, does "aes" or "aux" show up more?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "aes" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "aux" - compare definitions side by side with the headword page. Word entry
- This pair ranks #18,760 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "aes" and "aux" also get mixed up with nearby pairs, the highest-scored neighbour is "aes vs apis". Nearby pair
Confusion rank #18,760 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.