presovsprisãoWhich spelling fits?

Quick tell: preso is a adjective, prisão is a noun, so they fill different roles in a sentence.

Which to use

“preso” is an adjective and “prisão” is a noun - they look or sound alike but fill different roles in a sentence.

#1,020
“preso” frequency rank
#834
“prisão” frequency rank
1854
confusion score

Side-by-Side Comparison

Feature preso prisão
Definition encarceirado, levado à prisão ato ou efeito de prender

Letter map: preso vs prisão

Shared letters muted; letters that set preso and prisão apart highlighted. Shared run: 4.

5 ch
preso
6 ch
prisão

Grammar separator: preso vs prisão

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: preso is anadjective and prisãoanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 1854, derived from the frequency rank of both members and their visual similarity.

preso is recorded at frequency rank #1,020, classified as anadj. prisão is at rank #834, tagged as anoun, pronounced /pɾi.ˈzɐ̃w̃/.

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 1854, this pair ranks #73,673 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of preso vs prisão

Shared letters: oprs. Private to "preso": e. Private to "prisão": .

"preso" · 5 letters · shape CCVCV  ·  "prisão" · 6 letters · shape CCVCVV

Known mistypes of this pair

  • presoperso · ppreso · preos · presso · prreso · prseo · rpeso

Frequently Asked Questions

Do "preso" and "prisão" mean the same thing in a sentence?
No - they are not even the same part of speech. "preso" is an adjective and "prisão" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "preso" vs "prisão" - which ranks higher?
"prisão" is the more common of the two: it sits at frequency rank #834 in our Portuguese list, against #1,020 for "preso". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pair "preso" vs "prisão" is on the table, pick a follow-up below.

  • Full dictionary entry for "preso" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "prisão" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #73,673 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "preso" and "prisão" also get mixed up with nearby pairs, the highest-scored neighbour is "preso vs priest". 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 #73,673 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