Which to use
“acs” and “arco” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #49,775
- “acs” frequency rank
- #4,287
- “arco” frequency rank
- 54062
- confusion score
Side-by-Side Comparison
| Feature | acs | arco |
|---|---|---|
| Definition | olho (órgão da visão) | ente geométrico cuja principal característica é a curva |
Where the eye mixes acs and arco
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. acs runs 3 letters (VCC) against arco's 4 (VCCV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: acs vs arco
A purely visual mix-up. acs ([ats]) and arco (/ˈaɾ.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 1 letter(s) in length. Our composite confusion score for this pair is 54062, derived from the frequency rank of both members and their visual similarity.
acs is recorded at frequency rank #49,775, classified as anoun, pronounced [ats]. arco is at rank #4,287, tagged as anoun, pronounced /ˈaɾ.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 54062, this pair ranks #11,578 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of acs vs arco
Shared letters: ac. Private to "acs": s. Private to "arco": or.
"acs" · 3 letters · shape VCC · "arco" · 4 letters · shape VCCV
Known mistypes of this pair
- arco ← arcco · aroc · arrco · raco
Frequently Asked Questions
Do "acs" and "arco" mean the same thing in a sentence?
Frequency check: "acs" vs "arco" - which ranks higher?
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 "acs" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "arco" - compare definitions side by side with the headword page. Word entry
- This pair ranks #11,578 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "acs" and "arco" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs ASC". 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 #11,578 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.