anvsaroTell them apart

Which to use

“an” and “aro” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#3,030
“an” frequency rank
#14,762
“aro” frequency rank
17792
confusion score

Side-by-Side Comparison

Feature an aro
Definition Año. Planta perenne de la familia de las aroideas, con raíz tuberculosa y feculenta, de la cual salen las hojas, que son sagitales, lisas, grandes y de color verde oscuro manchado a veces de negro; con bohordo central, de tres a cuatro decímetros de altura, con espata larga y amarillenta que envuelve flores sin cáliz ni corola; espádice purpúreo prolongado en figura de maza, y frutos del color y tamaño de la grosella.

Where the eye mixes an and aro

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

2 ch
an
3 ch
aro

Visual trap between an and aro

A purely visual mix-up. an ([an]) and aro ([ˈaɾo]) 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 17792, derived from the frequency rank of both members and their visual similarity.

an is recorded at frequency rank #3,030, classified as anoun, pronounced [an]. aro is at rank #14,762, tagged as anoun, pronounced [ˈaɾo].

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 17792, this pair ranks #270,678 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of an vs aro

Shared letters: a. Private to "an": n. Private to "aro": or.

"an" · 2 letters · shape VC  ·  "aro" · 3 letters · shape VCV

Frequently Asked Questions

Can "an" and "aro" be used interchangeably?
No. They are said differently ([an] versus [ˈaɾo]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "an" vs "aro" - which ranks higher?
"an" is the more common of the two: it sits at frequency rank #3,030 in our Spanish list, against #14,762 for "aro". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "an" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aro" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #270,678 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "an" and "aro" also get mixed up with nearby pairs, the highest-scored neighbour is "alió vs aro". Nearby pair

Confusion rank #270,678 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