arcovsascoConfusable pair

Which to use

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

#4,287
“arco” frequency rank
#37,190
“asco” frequency rank
41477
confusion score

Side-by-Side Comparison

Feature arco asco
Definition ente geométrico cuja principal característica é a curva nojo

Where the eye mixes arco and asco

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. arco and asco follow the identical consonant-vowel pattern (VCCV). Same shape at a glance is often the real trap, independent of shared letters.

4 ch
arco
4 ch
asco

Visual trap between arco and asco

A purely visual mix-up. arco (/ˈaɾ.ku/) and asco (/ˈaʃ.ku/) 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 “arco” becomes s in “asco”. Our composite confusion score for this pair is 41477, 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/. asco is at rank #37,190, tagged as anoun, pronounced /ˈaʃ.ku/.

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 41477, this pair ranks #24,441 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of arco vs asco

Shared letters: aco. Private to "arco": r. Private to "asco": s.

"arco" · 4 letters · shape VCCV  ·  "asco" · 4 letters · shape VCCV

Known mistypes of this pair

  • arco ← arcco · aroc · arrco · raco
  • asco ← ascco · asoc · assco

Frequently Asked Questions

Do "arco" and "asco" mean the same thing in a sentence?
No. They are said differently (/ˈaɾ.ku/ versus /ˈaʃ.ku/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "arco" or "asco"?
"arco" is the more common of the two: it sits at frequency rank #4,287 in our Portuguese list, against #37,190 for "asco". 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 "arco" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "asco" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #24,441 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "arco" and "asco" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs asco". 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 #24,441 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