arovsasaWhat's the difference?

Which to use

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

#22,868
“aro” frequency rank
#7,104
“asa” frequency rank
29972
confusion score

Side-by-Side Comparison

Feature aro asa
Definition caixilho de madeira para os vãos das portas e janelas membro de um animal que serve para o voo

Where the eye mixes aro and asa

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

3 ch
aro
3 ch
asa

Look-alike desk: aro vs asa

A purely visual mix-up. aro (/ˈa.ɾu/) and asa (/ˈa.zɐ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 29972, 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/. asa is at rank #7,104, tagged as anoun, pronounced /ˈa.zɐ/.

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 29972, this pair ranks #38,512 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of aro vs asa

Shared letters: a. Private to "aro": or. Private to "asa": s.

"aro" · 3 letters · shape VCV  ·  "asa" · 3 letters · shape VCV

Frequently Asked Questions

Is swapping "aro" for "asa" ever safe?
No. They are said differently (/ˈa.ɾu/ versus /ˈa.zɐ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "aro" vs "asa" - which ranks higher?
"asa" is the more common of the two: it sits at frequency rank #7,104 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.

What to do next

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

  • Full dictionary entry for "aro" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "asa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #38,512 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "aro" and "asa" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs aro". Nearby pair

Confusion rank #38,512 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