ductvsdustWhat's the difference?

Which to use

“duct” and “dust” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#13,330
“duct” frequency rank
#3,557
“dust” frequency rank
16887
confusion score

Side-by-Side Comparison

Feature duct dust
Definition A pipe, tube or canal which carries gas or liquid from one place to another. Fine particles.

Where the eye mixes duct and dust

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
duct
4 ch
dust

Spelling & Dictionary Insight

A purely visual mix-up. duct (/dʌkt/) and dust (/dʌst/) 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 a single letter - c in “duct” becomes s in “dust”. Our composite confusion score for this pair is 16887, 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/. dust is at rank #3,557, tagged as anoun, pronounced /dʌst/.

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 16887, this pair ranks #454,958 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of duct vs dust

Shared letters: dtu. Private to "duct": c. Private to "dust": s.

"duct" · 4 letters · shape CVCC  ·  "dust" · 4 letters · shape CVCC

Known mistypes of this pair

  • ductdcut · dduct · ducct · ductt · dutc · udct
  • dustddust · dsut · dusst · dustt · duts · udst

Frequently Asked Questions

Can "duct" and "dust" be used interchangeably?
No. They are said differently (/dʌkt/ versus /dʌst/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "duct" or "dust"?
"dust" is the more common of the two: it sits at frequency rank #3,557 in our English list, against #13,330 for "duct". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list