Which to use
“o's” and “opus” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #30,902
- “o's” frequency rank
- #23,619
- “opus” frequency rank
- 54521
- confusion score
Side-by-Side Comparison
| Feature | o's | opus |
|---|---|---|
| Definition | plural of the letter o | A work of music or set of works with a specified rank in an ordering of a composer's complete published works. |
Where the eye mixes o's and opus
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: o's vs opus
A purely visual mix-up. o's (/əʊz/) and opus (/ˈəʊpəs/) 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 54521, derived from the frequency rank of both members and their visual similarity.
o's is recorded at frequency rank #30,902, classified as anoun, pronounced /əʊz/. opus is at rank #23,619, tagged as anoun, pronounced /ˈəʊpəs/.
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 54521, this pair ranks #140,441 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of o's vs opus
Shared letters: os. Private to "o's": -. Private to "opus": pu.
"o's" · 2 letters · shape VC · "opus" · 4 letters · shape VCVC
Known mistypes of this pair
- opus ← oppus · opsu · opuss · oups · pous
Frequently Asked Questions
Is swapping "o's" for "opus" ever safe?
Which is more common, "o's" or "opus"?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "o's" 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 #140,441 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "o's" and "opus" also get mixed up with nearby pairs, the highest-scored neighbour is "o's vs omi". 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 #140,441 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.