Which to use
“opa” is an adjective and “opaca” is a verb - they look or sound alike but fill different roles in a sentence.
- #37,239
- “opa” frequency rank
- #32,783
- “opaca” frequency rank
- 70022
- confusion score
Side-by-Side Comparison
| Feature | opa | opaca |
|---|---|---|
| Definition | Tonto. | Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del presente de indicativo de opacar. |
Where the eye mixes opa and opaca
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between opa and opaca
These two trip readers on the page rather than in the ear: opa is [ˈopa] while opaca is [oˈpaka]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “opa” sits inside “opaca”, and the parts of speech differ too (adjective vs verb), which is usually the fastest check. Our composite confusion score for this pair is 70022, derived from the frequency rank of both members and their visual similarity.
opa is recorded at frequency rank #37,239, classified as anadj, pronounced [ˈopa]. opaca is at rank #32,783, tagged as averb, pronounced [oˈpaka].
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 70022, this pair ranks #30,643 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of opa vs opaca
Shared letters: aop. Private to "opa": -. Private to "opaca": c.
"opa" · 3 letters · shape VCV · "opaca" · 5 letters · shape VCVCV
Known mistypes of this pair
- opaca ← oapca · opaac · opacca · opcaa · oppaca · poaca
Frequently Asked Questions
Can "opa" and "opaca" be used interchangeably?
Frequency check: "opa" vs "opaca" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "opa" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "opaca" - compare definitions side by side with the headword page. Word entry
- This pair ranks #30,643 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "opa" and "opaca" also get mixed up with nearby pairs, the highest-scored neighbour is "oirá vs opa". 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 #30,643 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.