Which to use
“duo” and “duty” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #6,234
- “duo” frequency rank
- #1,994
- “duty” frequency rank
- 8228
- confusion score
Side-by-Side Comparison
| Feature | duo | duty |
|---|---|---|
| Definition | Two people who work or collaborate together as partners; especially | That which one is morally or legally obligated to do. |
Where the eye mixes duo and duty
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between duo and duty
A purely visual mix-up. duo (/ˈdjuː.əʊ/) and duty (/ˈdjuː.ti/) 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 8228, derived from the frequency rank of both members and their visual similarity.
duo is recorded at frequency rank #6,234, classified as anoun, pronounced /ˈdjuː.əʊ/. duty is at rank #1,994, tagged as anoun, pronounced /ˈdjuː.ti/.
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 8228, this pair ranks #503,549 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of duo vs duty
Shared letters: du. Private to "duo": o. Private to "duty": ty.
"duo" · 3 letters · shape CVV · "duty" · 4 letters · shape CVCV
Known mistypes of this pair
- duty ← dduty · dtuy · dutty · dutyy · duyt · udty
Frequently Asked Questions
Is swapping "duo" for "duty" ever safe?
In ordinary English text, does "duo" or "duty" show up more?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "duo" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "duty" - compare definitions side by side with the headword page. Word entry
- This pair ranks #503,549 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "duo" and "duty" also get mixed up with nearby pairs, the highest-scored neighbour is "dox vs duo". 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 #503,549 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.