Which to use
“dusk” is an adjective and “duty” is a noun - they look or sound alike but fill different roles in a sentence.
- #16,221
- “dusk” frequency rank
- #1,994
- “duty” frequency rank
- 18215
- confusion score
Side-by-Side Comparison
| Feature | dusk | duty |
|---|---|---|
| Definition | Tending to darkness or blackness; moderately dark or black; dusky. | That which one is morally or legally obligated to do. |
Where the eye mixes dusk and duty
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: dusk vs duty
These two trip readers on the page rather than in the ear: dusk is /dʌsk/ while duty is /ˈdjuː.ti/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 18215, derived from the frequency rank of both members and their visual similarity.
dusk is recorded at frequency rank #16,221, classified as anadj, pronounced /dʌsk/. 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 18215, this pair ranks #446,360 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of dusk vs duty
Shared letters: du. Private to "dusk": ks. Private to "duty": ty.
"dusk" · 4 letters · shape CVCC · "duty" · 4 letters · shape CVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "dusk" for "duty" ever safe?
Frequency check: "dusk" vs "duty" - which ranks higher?
After this comparison
Eye-level mix-up between "dusk" and "duty" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "dusk" 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 #446,360 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "dusk" and "duty" also get mixed up with nearby pairs, the highest-scored neighbour is "douse vs dusk". 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 #446,360 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.