Which to use
“duct” and “duds” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #13,330
- “duct” frequency rank
- #39,792
- “duds” frequency rank
- 53122
- confusion score
Side-by-Side Comparison
| Feature | duct | duds |
|---|---|---|
| Definition | A pipe, tube or canal which carries gas or liquid from one place to another. | plural of dud |
Where the eye mixes duct and duds
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. duct and duds follow the identical consonant-vowel pattern (CVCC). Same shape at a glance is often the real trap, independent of shared letters.
Visual trap between duct and duds
A purely visual mix-up. duct (/dʌkt/) and duds (/dʌdz/) 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 53122, derived from the frequency rank of both members and their visual similarity.
duct is recorded at frequency rank #13,330, classified as anoun, pronounced /dʌkt/. duds is at rank #39,792, tagged as anoun, pronounced /dʌdz/.
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 53122, this pair ranks #151,537 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of duct vs duds
Shared letters: du. Private to "duct": ct. Private to "duds": s.
"duct" · 4 letters · shape CVCC · "duds" · 4 letters · shape CVCC
Known mistypes of this pair
Frequently Asked Questions
Do "duct" and "duds" mean the same thing in a sentence?
In ordinary English text, does "duct" or "duds" show up more?
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 "duct" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "duds" - compare definitions side by side with the headword page. Word entry
- This pair ranks #151,537 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "duct" and "duds" also get mixed up with nearby pairs, the highest-scored neighbour is "dabs vs duds". 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 #151,537 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.