pero vs preso, What's the Difference?

Which to use

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

#17,884
“pero” frequency rank: #1,020
“preso” frequency rank: 18904
confusion score

Side-by-Side Comparison

Feature	pero	preso
Definition	mas, porém	encarceirado, levado à prisão

Letter map: pero vs preso

Shared letters muted; letters that set pero and preso apart highlighted. Shared run: 3. pero runs 4 letters (CVCV) against preso's 5 (CCVCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch

pero

5 ch

preso

Role in the sentence - pero and preso

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: pero is aconjunction and presoanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 18904, derived from the frequency rank of both members and their visual similarity.

pero is recorded at frequency rank #17,884, classified as aconj, pronounced /ˈpe.ɾu/. preso is at rank #1,020, tagged as anadj.

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 18904, this pair ranks #51,970 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of pero vs preso

Shared letters: eopr. Private to "pero": -. Private to "preso": s.

"pero" · 4 letters · shape CVCV · "preso" · 5 letters · shape CCVCV

Known mistypes of this pair

pero ← epro · peor · perro · ppero · preo
preso ← perso · ppreso · preos · presso · prreso · prseo · rpeso

Frequently Asked Questions

Do "pero" and "preso" mean the same thing in a sentence?

No - they are not even the same part of speech. "pero" is a conjunction and "preso" an adjective, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "pero" vs "preso" - which ranks higher?

"preso" is the more common of the two: it sits at frequency rank #1,020 in our Portuguese list, against #17,884 for "pero". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

Full dictionary entry for "pero" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "preso" - compare definitions side by side with the headword page. Word entry
This pair ranks #51,970 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"pero" and "preso" also get mixed up with nearby pairs, the highest-scored neighbour is "pero vs pomo". 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 #51,970 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.