Which to use
“dilation” and “duration” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #33,615
- “dilation” frequency rank
- #5,676
- “duration” frequency rank
- 39291
- confusion score
Side-by-Side Comparison
| Feature | dilation | duration |
|---|---|---|
| Definition | The act of dilating. | An amount of time or a particular time interval. |
Where the eye mixes dilation and duration
Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.
Why the eye confuses dilation with duration
A purely visual mix-up. dilation (/daɪˈleɪʃən/) and duration (/dʒʊˈɹeɪʃn̩/) 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 39291, derived from the frequency rank of both members and their visual similarity.
dilation is recorded at frequency rank #33,615, classified as anoun, pronounced /daɪˈleɪʃən/. duration is at rank #5,676, tagged as anoun, pronounced /dʒʊˈɹeɪʃn̩/.
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 39291, this pair ranks #278,024 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of dilation vs duration
Shared letters: adinot. Private to "dilation": l. Private to "duration": ru.
"dilation" · 8 letters · shape CVCVCVVC · "duration" · 8 letters · shape CVCVCVVC
Known mistypes of this pair
Frequently Asked Questions
Do "dilation" and "duration" mean the same thing in a sentence?
Frequency check: "dilation" vs "duration" - which ranks higher?
After this comparison
Eye-level mix-up between "dilation" and "duration" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "dilation" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "duration" - compare definitions side by side with the headword page. Word entry
- This pair ranks #278,024 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "dilation" and "duration" also get mixed up with nearby pairs, the highest-scored neighbour is "diction vs dilation". 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 #278,024 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.