arcovsAriTell them apart

Which to use

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

#4,287
“arco” frequency rank
#11,799
“Ari” frequency rank
16086
confusion score

Side-by-Side Comparison

Feature arco Ari
Definition ente geométrico cuja principal característica é a curva prenome masculino

Where the eye mixes arco and Ari

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

4 ch
arco
3 ch
Ari

Why the eye confuses arco with Ari

A purely visual mix-up. arco (/ˈaɾ.ku/) and Ari (/a.ɾi/) 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 16086, derived from the frequency rank of both members and their visual similarity.

arco is recorded at frequency rank #4,287, classified as anoun, pronounced /ˈaɾ.ku/. Ari is at rank #11,799, tagged as anoun, pronounced /a.ɾi/.

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 16086, this pair ranks #55,543 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of arco vs Ari

Shared letters: ar. Private to "arco": co. Private to "Ari": i.

"arco" · 4 letters · shape VCCV  ·  "Ari" · 3 letters · shape VCV

Known mistypes of this pair

  • arcoarcco · aroc · arrco · raco

Frequently Asked Questions

Can "arco" and "Ari" be used interchangeably?
No. They are said differently (/ˈaɾ.ku/ versus /a.ɾi/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "arco" or "Ari"?
"arco" is the more common of the two: it sits at frequency rank #4,287 in our Portuguese list, against #11,799 for "Ari". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "arco" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Ari" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #55,543 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "arco" and "Ari" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs Ari". 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 #55,543 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