onivsopaWhich spelling fits?

Quick tell: oni is a pronoun, opa is an intj, so they fill different roles in a sentence.

Which to use

“oni” is a pronoun and “opa” is an intj - they look or sound alike but fill different roles in a sentence.

#49,618
“oni” frequency rank
#11,690
“opa” frequency rank
61308
confusion score

Side-by-Side Comparison

Feature oni opa
Definition pronome pessoal do caso nominativo da terceira pessoa do plural de gênero masculino pessoal, eles acusa o reconhecimento de um pequeno erro

Letter map: oni vs opa

Shared letters muted; letters that set oni and opa apart highlighted. Shared run: 1.

3 ch
oni
3 ch
opa

Role in the sentence - oni and opa

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: oni is apronoun and opaanintj. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 61308, derived from the frequency rank of both members and their visual similarity.

oni is recorded at frequency rank #49,618, classified as apron. opa is at rank #11,690, tagged as anintj.

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 61308, this pair ranks #7,198 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of oni vs opa

Shared letters: o. Private to "oni": in. Private to "opa": ap.

"oni" · 3 letters · shape VCV  ·  "opa" · 3 letters · shape VCV

Frequently Asked Questions

Do "oni" and "opa" mean the same thing in a sentence?
No - they are not even the same part of speech. "oni" is a pronoun and "opa" an intj, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "oni" or "opa"?
"opa" is the more common of the two: it sits at frequency rank #11,690 in our Portuguese list, against #49,618 for "oni". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "oni" vs "opa" is on the table, pick a follow-up below.

  • Full dictionary entry for "oni" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "opa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #7,198 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "oni" and "opa" also get mixed up with nearby pairs, the highest-scored neighbour is "oni vs ons". Nearby pair

Confusion rank #7,198 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