arovsauraWhich spelling fits?

Which to use

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

#22,868
“aro” frequency rank
#13,887
“aura” frequency rank
36755
confusion score

Side-by-Side Comparison

Feature aro aura
Definition caixilho de madeira para os vãos das portas e janelas vento brando e suave; aragem

Where the eye mixes aro and aura

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
aro
4 ch
aura

Why the eye confuses aro with aura

A purely visual mix-up. aro (/ˈa.ɾu/) and aura (/ˈaw.ɾɐ/) 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 36755, derived from the frequency rank of both members and their visual similarity.

aro is recorded at frequency rank #22,868, classified as anoun, pronounced /ˈa.ɾu/. aura is at rank #13,887, tagged as anoun, pronounced /ˈaw.ɾɐ/.

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 36755, this pair ranks #29,984 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of aro vs aura

Shared letters: ar. Private to "aro": o. Private to "aura": u.

"aro" · 3 letters · shape VCV  ·  "aura" · 4 letters · shape VVCV

Known mistypes of this pair

  • auraarua · auar · aurra · uara

Frequently Asked Questions

Can "aro" and "aura" be used interchangeably?
No. They are said differently (/ˈa.ɾu/ versus /ˈaw.ɾɐ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Portuguese text, does "aro" or "aura" show up more?
"aura" is the more common of the two: it sits at frequency rank #13,887 in our Portuguese list, against #22,868 for "aro". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "aro" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aura" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #29,984 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "aro" and "aura" also get mixed up with nearby pairs, the highest-scored neighbour is "acs 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 #29,984 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list