APIvsaúnWhat's the difference?

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

Which to use

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

#19,027
“API” frequency rank
#240
“aún” frequency rank
19267
confusion score

Side-by-Side Comparison

Feature API aún
Definition Conjunto de especificaciones e implementación de comunicación entre componentes software. Se trata de de un conjunto de funciones o llamadas al sistema o bien un conjuto de clases y sus métodos cuyo propósito es ofrecer acceso a los servicios de un sistema. Indica que el hecho persiste en el presente, aunque pueda cambiar en lo sucesivo..

Where the eye mixes API and aún

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

3 ch
API
3 ch
aún

Why the eye confuses API with aún

These two trip readers on the page rather than in the ear: API is [ˈapi] 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 (noun vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 19267, derived from the frequency rank of both members and their visual similarity.

API is recorded at frequency rank #19,027, classified as anoun, pronounced [ˈapi]. 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 19267, this pair ranks #264,490 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of API vs aún

Shared letters: a. Private to "API": ip. Private to "aún": .

"API" · 3 letters · shape VCV  ·  "aún" · 3 letters · shape VVC

Frequently Asked Questions

Is swapping "API" for "aún" ever safe?
No - they are not even the same part of speech. "API" is a noun and "aún" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "API" or "aún"?
"aún" is the more common of the two: it sits at frequency rank #240 in our Spanish list, against #19,027 for "API". 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 "API" and "aún" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "API" 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 #264,490 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "API" and "aún" also get mixed up with nearby pairs, the highest-scored neighbour is "API vs apis". Nearby pair

Confusion rank #264,490 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