Which to use
“opio” is a noun and “opuso” is a verb - they look or sound alike but fill different roles in a sentence.
- #19,191
- “opio” frequency rank
- #15,187
- “opuso” frequency rank
- 34378
- confusion score
Side-by-Side Comparison
| Feature | opio | opuso |
|---|---|---|
| Definition | Látex que se obtiene de la adormidera (papaverácea) cuando está verde y que, una vez secado, se usa como sustancia estupefaciente. | Tercera persona del singular (él, ella, ello; usted, 2.ª persona) del pretérito perfecto simple de indicativo de oponer o de oponerse. |
Where the eye mixes opio and opuso
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. opio runs 4 letters (VCVV) against opuso's 5 (VCVCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses opio with opuso
These two trip readers on the page rather than in the ear: opio is [ˈopjo] while opuso is [oˈpuso]. 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 (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 34378, derived from the frequency rank of both members and their visual similarity.
opio is recorded at frequency rank #19,191, classified as anoun, pronounced [ˈopjo]. opuso is at rank #15,187, tagged as averb, pronounced [oˈpuso].
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 34378, this pair ranks #191,775 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of opio vs opuso
Shared letters: op. Private to "opio": i. Private to "opuso": su.
"opio" · 4 letters · shape VCVV · "opuso" · 5 letters · shape VCVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "opio" for "opuso" ever safe?
Frequency check: "opio" vs "opuso" - which ranks higher?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "opio" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "opuso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #191,775 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "opio" and "opuso" also get mixed up with nearby pairs, the highest-scored neighbour is "ojito vs opio". 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 #191,775 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.