aesvsaúnWhich spelling fits?

Quick tell: aes is a adjective, aún is an adverb, so they fill different roles in a sentence.

Which to use

“aes” is an adjective and “aún” is an adverb - they look or sound alike but fill different roles in a sentence.

#43,355
“aes” frequency rank
#240
“aún” frequency rank
43595
confusion score

Side-by-Side Comparison

Feature aes aún
Definition Fácil. Indica que el hecho persiste en el presente, aunque pueda cambiar en lo sucesivo..

Where the eye mixes aes and aún

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
aes
3 ch
aún

Look-alike desk: aes vs aún

These two trip readers on the page rather than in the ear: aes is [ˈɛːs] while aún is [aˈũn]. 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 adverb), which is usually the fastest check. Our composite confusion score for this pair is 43595, 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]. aún is at rank #240, tagged as anadv, pronounced [aˈũn].

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 43595, this pair ranks #141,810 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of aes vs aún

Shared letters: a. Private to "aes": es. Private to "aún": .

"aes" · 3 letters · shape VVC  ·  "aún" · 3 letters · shape VVC

Frequently Asked Questions

Is swapping "aes" for "aún" ever safe?
No - they are not even the same part of speech. "aes" is an adjective and "aún" an adverb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "aes" vs "aún" - which ranks higher?
"aún" is the more common of the two: it sits at frequency rank #240 in our Spanish list, against #43,355 for "aes". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Eye-level mix-up between "aes" and "aún" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "aes" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aún" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #141,810 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "aes" and "aún" also get mixed up with nearby pairs, the highest-scored neighbour is "aes vs apis". Nearby pair

Confusion rank #141,810 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list