Which to use
“quad” and “quart” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #11,274
- “quad” frequency rank
- #28,679
- “quart” frequency rank
- 39953
- confusion score
Side-by-Side Comparison
| Feature | quad | quart |
|---|---|---|
| Definition | Clipping of quadrat. | A unit of liquid capacity equal to two pints; one-fourth (quarter) of a gallon. Equivalent to 1.136 liters in the UK and 0.946 liter (liquid quart) or 1.101 liters (dry quart) in the U.S. |
Where the eye mixes quad and quart
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Spelling & Dictionary Insight
A purely visual mix-up. quad (/kwɑd/) and quart (/kwɔːt/) 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 1 letter(s) in length. Our composite confusion score for this pair is 39953, derived from the frequency rank of both members and their visual similarity.
quad is recorded at frequency rank #11,274, classified as anoun, pronounced /kwɑd/. quart is at rank #28,679, tagged as anoun, pronounced /kwɔːt/.
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 39953, this pair ranks #272,020 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of quad vs quart
Shared letters: aqu. Private to "quad": d. Private to "quart": rt.
"quad" · 4 letters · shape CVVC · "quart" · 5 letters · shape CVVCC