arãovsatadoWhich spelling fits?

Quick tell: arão is a noun, atado is an adjective, so they fill different roles in a sentence.

Which to use

“arão” is a noun and “atado” is an adjective - they look or sound alike but fill different roles in a sentence.

#30,004
“arão” frequency rank
#37,645
“atado” frequency rank
67649
confusion score

Side-by-Side Comparison

Feature arão atado
Definition ave marinha, airo, também chamado arau-comum, Uria aalge preso com uma corda ou atacador

Letter map: arão vs atado

Shared letters muted; letters that set arão and atado apart highlighted. Shared run: 2. arão runs 4 letters (VCVV) against atado's 5 (VCVCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
arão
5 ch
atado

Grammar separator: arão vs atado

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: arão is anoun and atadoanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 67649, 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/. atado is at rank #37,645, tagged as anadj.

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 67649, this pair ranks #4,559 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of arão vs atado

Shared letters: ao. Private to "arão": rã. Private to "atado": dt.

"arão" · 4 letters · shape VCVV  ·  "atado" · 5 letters · shape VCVCV

Known mistypes of this pair

  • atado ← aatdo · ataddo · ataod · atdao · attado · taado

Frequently Asked Questions

Can "arão" and "atado" be used interchangeably?
No - they are not even the same part of speech. "arão" is a noun and "atado" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "arão" or "atado" show up more?
"arão" is the more common of the two: it sits at frequency rank #30,004 in our Portuguese list, against #37,645 for "atado". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "arão" vs "atado" is on the table, pick a follow-up below.

  • Full dictionary entry for "arão" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "atado" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #4,559 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "arão" and "atado" also get mixed up with nearby pairs, the highest-scored neighbour is "atado 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 #4,559 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