Which to use
“duc” is a noun and “dumb” is an adjective - they look or sound alike but fill different roles in a sentence.
- #36,966
- “duc” frequency rank
- #2,788
- “dumb” frequency rank
- 39754
- confusion score
Side-by-Side Comparison
| Feature | duc | dumb |
|---|---|---|
| Definition | A French duke. | Unable to speak; lacking power of speech. |
Letter map: duc vs dumb
Shared letters muted; letters that set duc and dumb apart highlighted. Shared run: 2.
Grammar separator: duc vs dumb
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: duc is anoun and dumbanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 39754, derived from the frequency rank of both members and their visual similarity.
duc is recorded at frequency rank #36,966, classified as anoun. dumb is at rank #2,788, tagged as anadj, pronounced /dʌm/.
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 39754, this pair ranks #273,831 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of duc vs dumb
Shared letters: du. Private to "duc": c. Private to "dumb": bm.
"duc" · 3 letters · shape CVC · "dumb" · 4 letters · shape CVCC
Known mistypes of this pair
- dumb ← ddumb · dmub · dubm · dumbb · dummb · udmb
Frequently Asked Questions
Is swapping "duc" for "dumb" ever safe?
Which is more common, "duc" or "dumb"?
What to do next
You've compared "duc" and "dumb". Here's where to go from here.
- Full dictionary entry for "duc" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "dumb" - compare definitions side by side with the headword page. Word entry
- This pair ranks #273,831 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "duc" and "dumb" also get mixed up with nearby pairs, the highest-scored neighbour is "dox vs duc". 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 #273,831 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.