apertovsásperoTell them apart

Quick tell: aperto is a noun, áspero is an adjective, so they fill different roles in a sentence.

Which to use

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

#10,129
“aperto” frequency rank
#28,424
“áspero” frequency rank
38553
confusion score

Side-by-Side Comparison

Feature aperto áspero
Definition ato de apertar desagradável ao tato; rugoso

Where the eye mixes aperto and áspero

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. aperto (VCVCCV) and áspero (VCCVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
aperto
6 ch
áspero

Why the eye confuses aperto with áspero

These two trip readers on the page rather than in the ear: aperto is /ɐ.ˈpeɾ.tu/ while áspero is /ˈaʃ.pɨ.ɾu/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 5 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 38553, derived from the frequency rank of both members and their visual similarity.

aperto is recorded at frequency rank #10,129, classified as anoun, pronounced /ɐ.ˈpeɾ.tu/. áspero is at rank #28,424, tagged as anadj, pronounced /ˈaʃ.pɨ.ɾu/.

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 38553, this pair ranks #27,873 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of aperto vs áspero

Shared letters: eopr. Private to "aperto": at. Private to "áspero": sá.

"aperto" · 6 letters · shape VCVCCV  ·  "áspero" · 6 letters · shape VCCVCV

Known mistypes of this pair

  • aperto ← aeprto · aperot · aperrto · apertto · apetro · apperto · apreto · paerto

Frequently Asked Questions

Can "aperto" and "áspero" be used interchangeably?
No - they are not even the same part of speech. "aperto" is a noun and "áspero" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "aperto" or "áspero" show up more?
"aperto" is the more common of the two: it sits at frequency rank #10,129 in our Portuguese list, against #28,424 for "áspero". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "aperto" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "áspero" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #27,873 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "aperto" and "áspero" also get mixed up with nearby pairs, the highest-scored neighbour is "aero vs áspero". 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 #27,873 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