arãovsautoWhat's the difference?

Which to use

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

#30,004
“arão” frequency rank
#1,421
“auto” frequency rank
31425
confusion score

Side-by-Side Comparison

Feature arão auto
Definition ave marinha, airo, também chamado arau-comum, Uria aalge solenidade; ação pública

Where the eye mixes arão and auto

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. arão (VCVV) and auto (VVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
arão
4 ch
auto

Look-alike desk: arão vs auto

A purely visual mix-up. arão (Singular: /ɐ.'ɾaŋ/, /ɐ.'ɾa.o/, /ɐ.'ɾaw/) and auto (/ˈaw.tu/) 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 31425, derived from the frequency rank of both members and their visual similarity.

arão is recorded at frequency rank #30,004, classified as anoun, pronounced Singular: /ɐ.'ɾaŋ/, /ɐ.'ɾa.o/, /ɐ.'ɾaw/. auto is at rank #1,421, tagged as anoun, pronounced /ˈaw.tu/.

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 31425, this pair ranks #36,661 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of arão vs auto

Shared letters: ao. Private to "arão": rã. Private to "auto": tu.

"arão" · 4 letters · shape VCVV  ·  "auto" · 4 letters · shape VVCV

Known mistypes of this pair

  • auto ← atuo · auot · autto · uato

Frequently Asked Questions

Can "arão" and "auto" be used interchangeably?
No. They are said differently (Singular: /ɐ.'ɾaŋ/, /ɐ.'ɾa.o/, /ɐ.'ɾaw/ versus /ˈaw.tu/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "arão" vs "auto" - which ranks higher?
"auto" is the more common of the two: it sits at frequency rank #1,421 in our Portuguese list, against #30,004 for "arão". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "arão" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "auto" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #36,661 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "arão" and "auto" also get mixed up with nearby pairs, the highest-scored neighbour is "arão vs atar". 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 #36,661 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