arovsasíTell them apart

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

Which to use

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

#14,762
“aro” frequency rank
#55
“así” frequency rank
14817
confusion score

Side-by-Side Comparison

Feature aro así
Definition 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. De este modo o forma.

Where the eye mixes aro and así

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

3 ch
aro
3 ch
así

Visual trap between aro and así

These two trip readers on the page rather than in the ear: aro is [ˈaɾo] while así is [aˈsi]. 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 14817, derived from the frequency rank of both members and their visual similarity.

aro is recorded at frequency rank #14,762, classified as anoun, pronounced [ˈaɾo]. así is at rank #55, tagged as anadv, pronounced [aˈsi].

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 14817, this pair ranks #282,614 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of aro vs así

Shared letters: a. Private to "aro": or. Private to "así": .

"aro" · 3 letters · shape VCV  ·  "así" · 3 letters · shape VCV

Frequently Asked Questions

Do "aro" and "así" mean the same thing in a sentence?
No - they are not even the same part of speech. "aro" is a noun and "así" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "aro" or "así"?
"así" is the more common of the two: it sits at frequency rank #55 in our Spanish list, against #14,762 for "aro". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "aro" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "así" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #282,614 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "aro" and "así" also get mixed up with nearby pairs, the highest-scored neighbour is "alió vs aro". Nearby pair

Confusion rank #282,614 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