openvsóperaConfusable pair

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

Which to use

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

#3,348
“open” frequency rank
#8,708
“ópera” frequency rank
12056
confusion score

Side-by-Side Comparison

Feature open ópera
Definition aberto drama teatral quase inteiramente cantado com acompanhamento de orquestra

Where the eye mixes open and ópera

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
open
5 ch
ópera

Look-alike desk: open vs ópera

These two trip readers on the page rather than in the ear: open is /ˈəʊ.pən/ while ópera is /ˈɔ.pɨ.ɾɐ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 12056, derived from the frequency rank of both members and their visual similarity.

open is recorded at frequency rank #3,348, classified as anadj, pronounced /ˈəʊ.pən/. ópera is at rank #8,708, tagged as anoun, pronounced /ˈɔ.pɨ.ɾɐ/.

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 12056, this pair ranks #60,646 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of open vs ópera

Shared letters: ep. Private to "open": no. Private to "ópera": aró.

"open" · 4 letters · shape VCVC  ·  "ópera" · 5 letters · shape VCVCV

Known mistypes of this pair

  • openoepn · openn · opne · oppen · poen

Frequently Asked Questions

Can "open" and "ópera" be used interchangeably?
No - they are not even the same part of speech. "open" is an adjective and "ópera" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "open" or "ópera" show up more?
"open" is the more common of the two: it sits at frequency rank #3,348 in our Portuguese list, against #8,708 for "ópera". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "open" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ópera" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #60,646 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "open" and "ópera" also get mixed up with nearby pairs, the highest-scored neighbour is "opala vs ópera". 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 #60,646 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