acsvsaiaWhich spelling fits?

Which to use

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

#49,775
“acs” frequency rank
#39,961
“aia” frequency rank
89736
confusion score

Side-by-Side Comparison

Feature acs aia
Definition olho (órgão da visão) criada para companhia

Where the eye mixes acs and aia

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. acs (VCC) and aia (VVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch
acs
3 ch
aia

Look-alike desk: acs vs aia

A purely visual mix-up. acs ([ats]) and aia (/ˈaj.ɐ/) 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 89736, 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]. aia is at rank #39,961, tagged as anoun, pronounced /ˈaj.ɐ/.

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 89736, this pair ranks #312 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of acs vs aia

Shared letters: a. Private to "acs": cs. Private to "aia": i.

"acs" · 3 letters · shape VCC  ·  "aia" · 3 letters · shape VVV

Frequently Asked Questions

Can "acs" and "aia" be used interchangeably?
No. They are said differently ([ats] versus /ˈaj.ɐ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Portuguese text, does "acs" or "aia" show up more?
"aia" is the more common of the two: it sits at frequency rank #39,961 in our Portuguese list, against #49,775 for "acs". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "acs" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "aia" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #312 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "acs" and "aia" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs ASC". Nearby pair

Confusion rank #312 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