arovsatoConfusable pair

Which to use

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

#22,868
“aro” frequency rank
#1,326
“ato” frequency rank
24194
confusion score

Side-by-Side Comparison

Feature aro ato
Definition caixilho de madeira para os vãos das portas e janelas processo de fazer algo; manifestação real e tangível

Where the eye mixes aro and ato

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

3 ch
aro
3 ch
ato

Look-alike desk: aro vs ato

A purely visual mix-up. aro (/ˈa.ɾu/) and ato (/ˈato/ ou /ˈatu/_(plural:) /ˈatos/, /ˈatus/ ou /ˈatuʃ/) 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 a single letter - r in “aro” becomes t in “ato”. Our composite confusion score for this pair is 24194, 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/. ato is at rank #1,326, tagged as anoun, pronounced /ˈato/ ou /ˈatu/_(plural:) /ˈatos/, /ˈatus/ ou /ˈatuʃ/.

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 24194, this pair ranks #45,479 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of aro vs ato

Shared letters: ao. Private to "aro": r. Private to "ato": t.

"aro" · 3 letters · shape VCV  ·  "ato" · 3 letters · shape VCV

Frequently Asked Questions

Can "aro" and "ato" be used interchangeably?
No. They are said differently (/ˈa.ɾu/ versus /ˈato/ ou /ˈatu/_(plural:) /ˈatos/, /ˈatus/ ou /ˈatuʃ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Portuguese text, does "aro" or "ato" show up more?
"ato" is the more common of the two: it sits at frequency rank #1,326 in our Portuguese list, against #22,868 for "aro". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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 "ato" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #45,479 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "aro" and "ato" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs aro". Nearby pair

Confusion rank #45,479 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