OPEPvsopusWhich spelling fits?

Which to use

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

#29,766
“OPEP” frequency rank
#16,657
“opus” frequency rank
46423
confusion score

Side-by-Side Comparison

Feature OPEP opus
Definition Organización económica internacional, con sede en Viena (Austria). Creada como respuesta a la bajada del precio oficial del petróleo acordada unilateralmente por las grandes compañías distribuidoras en agosto de 1960. Trabajo.

Where the eye mixes OPEP and opus

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

4 ch
OPEP
4 ch
opus

Why the eye confuses OPEP with opus

A purely visual mix-up. OPEP ([oˈpep]) and opus (/ˈo.pus/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 46423, derived from the frequency rank of both members and their visual similarity.

OPEP is recorded at frequency rank #29,766, classified as anoun, pronounced [oˈpep]. opus is at rank #16,657, tagged as anoun, pronounced /ˈo.pus/.

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 46423, this pair ranks #125,803 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of OPEP vs opus

Shared letters: op. Private to "OPEP": e. Private to "opus": su.

"OPEP" · 4 letters · shape VCVC  ·  "opus" · 4 letters · shape VCVC

Known mistypes of this pair

  • OPEPoepp · opepp · oppep
  • opusoppus · opsu · opuss · oups · pous

Frequently Asked Questions

Can "OPEP" and "opus" be used interchangeably?
No. They are said differently ([oˈpep] versus /ˈo.pus/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "OPEP" vs "opus" - which ranks higher?
"opus" is the more common of the two: it sits at frequency rank #16,657 in our Spanish list, against #29,766 for "OPEP". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "OPEP" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "opus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #125,803 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "OPEP" and "opus" also get mixed up with nearby pairs, the highest-scored neighbour is "ome vs OPEP". 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 #125,803 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