acasovsachadoWhat's the difference?

Quick tell: acaso is a adverb, achado is a noun, so they fill different roles in a sentence.

Which to use

“acaso” is an adverb and “achado” is a noun - they look or sound alike but fill different roles in a sentence.

#2,759
“acaso” frequency rank
#10,114
“achado” frequency rank
12873
confusion score

Side-by-Side Comparison

Feature acaso achado
Definition casualmente ato ou efeito de achar

Letter map: acaso vs achado

Shared letters muted; letters that set acaso and achado apart highlighted. Shared run: 4. acaso runs 5 letters (VCVCV) against achado's 6 (VCCVCV) - the length gap alone is often enough to separate them once you know to check it.

5 ch
acaso
6 ch
achado

Part-of-speech tell for acaso / achado

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: acaso is anadverb and achadoanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 12873, derived from the frequency rank of both members and their visual similarity.

acaso is recorded at frequency rank #2,759, classified as anadv. achado is at rank #10,114, tagged as anoun, pronounced /ɐ.ˈʃa.du/.

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 12873, this pair ranks #59,595 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of acaso vs achado

Shared letters: aco. Private to "acaso": s. Private to "achado": dh.

"acaso" · 5 letters · shape VCVCV  ·  "achado" · 6 letters · shape VCCVCV

Known mistypes of this pair

  • acaso ← aacso · acaos · acasso · accaso · acsao · caaso
  • achado ← acahdo · acchado · achaddo · achaod · achdao · achhado · ahcado · cahado

Frequently Asked Questions

Is swapping "acaso" for "achado" ever safe?
No - they are not even the same part of speech. "acaso" is an adverb and "achado" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "acaso" or "achado" show up more?
"acaso" is the more common of the two: it sits at frequency rank #2,759 in our Portuguese list, against #10,114 for "achado". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "acaso" and "achado". Here's where to go from here.

  • Full dictionary entry for "acaso" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "achado" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #59,595 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "acaso" and "achado" also get mixed up with nearby pairs, the highest-scored neighbour is "achado vs achatado". 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 #59,595 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