Which to use
“dull” is an adjective and “dura” is a noun - they look or sound alike but fill different roles in a sentence.
- #7,788
- “dull” frequency rank
- #42,109
- “dura” frequency rank
- 49897
- confusion score
Side-by-Side Comparison
| Feature | dull | dura |
|---|---|---|
| Definition | Lacking the ability to cut easily; not sharp. | Ellipsis of dura mater. |
Where the eye mixes dull and dura
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. dull (CVCC) and dura (CVCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.
Why the eye confuses dull with dura
These two trip readers on the page rather than in the ear: dull is /dʌl/ while dura is /ˈdjʊə.ɹə/. 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 49897, derived from the frequency rank of both members and their visual similarity.
dull is recorded at frequency rank #7,788, classified as anadj, pronounced /dʌl/. dura is at rank #42,109, tagged as anoun, pronounced /ˈdjʊə.ɹə/.
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 49897, this pair ranks #179,262 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of dull vs dura
Shared letters: du. Private to "dull": l. Private to "dura": ar.
"dull" · 4 letters · shape CVCC · "dura" · 4 letters · shape CVCV
Known mistypes of this pair
Frequently Asked Questions
Can "dull" and "dura" be used interchangeably?
Which is more common, "dull" or "dura"?
What to do next
Eye-level mix-up between "dull" and "dura" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "dull" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "dura" - compare definitions side by side with the headword page. Word entry
- This pair ranks #179,262 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "dull" and "dura" also get mixed up with nearby pairs, the highest-scored neighbour is "dour vs dura". 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 #179,262 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.