Which to use
“onus” is a noun and “oui” is an intj - they look or sound alike but fill different roles in a sentence.
- #29,402
- “onus” frequency rank
- #44,386
- “oui” frequency rank
- 73788
- confusion score
Side-by-Side Comparison
| Feature | onus | oui |
|---|---|---|
| Definition | A legal obligation. | Synonym of yes. |
Where the eye mixes onus and oui
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. onus runs 4 letters (VCVC) against oui's 3 (VVV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: onus vs oui
These two trip readers on the page rather than in the ear: onus is /ˈəʊnəs/ while oui is /wiː/. 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 intj), which is usually the fastest check. Our composite confusion score for this pair is 73788, derived from the frequency rank of both members and their visual similarity.
onus is recorded at frequency rank #29,402, classified as anoun, pronounced /ˈəʊnəs/. oui is at rank #44,386, tagged as anintj, pronounced /wiː/.
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 73788, this pair ranks #38,416 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of onus vs oui
Shared letters: ou. Private to "onus": ns. Private to "oui": i.
"onus" · 4 letters · shape VCVC · "oui" · 3 letters · shape VVV
Known mistypes of this pair
- onus ← onnus · onsu · onuss · ouns
Frequently Asked Questions
Can "onus" and "oui" be used interchangeably?
Frequency check: "onus" vs "oui" - which ranks higher?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "onus" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "oui" - compare definitions side by side with the headword page. Word entry
- This pair ranks #38,416 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "onus" and "oui" also get mixed up with nearby pairs, the highest-scored neighbour is "omi vs oui". 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 #38,416 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.