opiovsóxidoConfusable pair

Which to use

“opio” and “óxido” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#19,191
“opio” frequency rank
#17,580
“óxido” frequency rank
36771
confusion score

Side-by-Side Comparison

Feature opio óxido
Definition Látex que se obtiene de la adormidera (papaverácea) cuando está verde y que, una vez secado, se usa como sustancia estupefaciente. compuesto con oxígeno, en el cual está en estado de oxidación -2

Where the eye mixes opio and óxido

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. opio runs 4 letters (VCVV) against óxido's 5 (VCVCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
opio
5 ch
óxido

Visual trap between opio and óxido

A purely visual mix-up. opio ([ˈopjo]) and óxido ([ˈoksið̞o]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 36771, 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]. óxido is at rank #17,580, tagged as anoun, pronounced [ˈoksið̞o].

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 36771, this pair ranks #178,865 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of opio vs óxido

Shared letters: io. Private to "opio": p. Private to "óxido": dxó.

"opio" · 4 letters · shape VCVV  ·  "óxido" · 5 letters · shape VCVCV

Known mistypes of this pair

  • opio ← oipo · opoi · oppio · poio

Frequently Asked Questions

Is swapping "opio" for "óxido" ever safe?
No. They are said differently ([ˈopjo] versus [ˈoksið̞o]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "opio" or "óxido"?
"óxido" is the more common of the two: it sits at frequency rank #17,580 in our Spanish list, against #19,191 for "opio". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "opio" and "óxido" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "opio" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "óxido" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #178,865 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "opio" and "óxido" 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 #178,865 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list