Which to use
“sud” and “sura” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #37,717
- “sud” frequency rank
- #49,659
- “sura” frequency rank
- 87376
- confusion score
Side-by-Side Comparison
| Feature | sud | sura |
|---|---|---|
| Definition | A bubble of lather or foam (the singular of suds). | Any of the 114 chapters of the Quran. |
Where the eye mixes sud and sura
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. sud runs 3 letters (CVC) against sura's 4 (CVCV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between sud and sura
A purely visual mix-up. sud (/sʌd/) and sura (/ˈsʊə.ɹə/) 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 87376, derived from the frequency rank of both members and their visual similarity.
sud is recorded at frequency rank #37,717, classified as anoun, pronounced /sʌd/. sura is at rank #49,659, tagged as anoun, pronounced /ˈsʊə.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 87376, this pair ranks #7,680 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of sud vs sura
Shared letters: su. Private to "sud": d. Private to "sura": ar.
"sud" · 3 letters · shape CVC · "sura" · 4 letters · shape CVCV
Known mistypes of this pair
- sura ← srua · ssura · suar · surra · usra
Frequently Asked Questions
Is swapping "sud" for "sura" ever safe?
Frequency check: "sud" vs "sura" - which ranks higher?
Useful next steps
Eye-level mix-up between "sud" and "sura" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "sud" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sura" - compare definitions side by side with the headword page. Word entry
- This pair ranks #7,680 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "sud" and "sura" also get mixed up with nearby pairs, the highest-scored neighbour is "suds vs sura". 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 #7,680 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.