achavsactConfusable pair

Quick tell: acha is a noun, act is a verb, so they fill different roles in a sentence.

Which to use

“acha” is a noun and “act” is a verb - they look or sound alike but fill different roles in a sentence.

#547
“acha” frequency rank
#9,948
“act” frequency rank
10495
confusion score

Side-by-Side Comparison

Feature acha act
Definition cavaca agir

Letter map: acha vs act

Shared letters muted; letters that set acha and act apart highlighted. Shared run: 2.

4 ch
acha
3 ch
act

Part-of-speech tell for acha / act

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: acha is anoun and actaverb. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 10495, derived from the frequency rank of both members and their visual similarity.

acha is recorded at frequency rank #547, classified as anoun, pronounced /ˈa.ʃɐ/. act is at rank #9,948, tagged as averb.

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 10495, this pair ranks #62,595 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of acha vs act

Shared letters: ac. Private to "acha": h. Private to "act": t.

"acha" · 4 letters · shape VCCV  ·  "act" · 3 letters · shape VCC

Known mistypes of this pair

  • achaacah · accha · achha · ahca · caha

Frequently Asked Questions

Is swapping "acha" for "act" ever safe?
No - they are not even the same part of speech. "acha" is a noun and "act" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "acha" or "act" show up more?
"acha" is the more common of the two: it sits at frequency rank #547 in our Portuguese list, against #9,948 for "act". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

Pair "acha" vs "act" is on the table, pick a follow-up below.

  • Full dictionary entry for "acha" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "act" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #62,595 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "acha" and "act" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs act". 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 #62,595 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