aproxvsaroWhat's the difference?

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

Which to use

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

#10,265
“aprox” frequency rank
#14,762
“aro” frequency rank
25027
confusion score

Side-by-Side Comparison

Feature aprox aro
Definition Aproximadamente. 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 aprox and aro

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
aprox
3 ch
aro

Visual trap between aprox and aro

These two trip readers on the page rather than in the ear: aprox is [aˈpɾoks] while aro is [ˈaɾo]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 25027, derived from the frequency rank of both members and their visual similarity.

aprox is recorded at frequency rank #10,265, classified as anadv, pronounced [aˈpɾoks]. 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 25027, this pair ranks #238,353 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of aprox vs aro

Shared letters: aor. Private to "aprox": px. Private to "aro": -.

"aprox" · 5 letters · shape VCCVC  ·  "aro" · 3 letters · shape VCV

Known mistypes of this pair

  • aproxaporx · approx · aproxx · aprrox · aprxo · arpox · parox

Frequently Asked Questions

Do "aprox" and "aro" mean the same thing in a sentence?
No - they are not even the same part of speech. "aprox" is an adverb and "aro" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "aprox" or "aro"?
"aprox" is the more common of the two: it sits at frequency rank #10,265 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 "aprox" 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 #238,353 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "aprox" and "aro" also get mixed up with nearby pairs, the highest-scored neighbour is "alió vs aro". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #238,353 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