Which to use
“slough” and “slush” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #26,965
- “slough” frequency rank
- #29,467
- “slush” frequency rank
- 56432
- confusion score
Side-by-Side Comparison
| Feature | slough | slush |
|---|---|---|
| Definition | The skin shed by a snake or other reptile. | Half-melted snow or ice, generally located on the ground. |
Where the eye mixes slough and slush
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. slough runs 6 letters (CCVVCC) against slush's 5 (CCVCC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses slough with slush
A purely visual mix-up. slough (/slʌf/) and slush (/slʌʃ/) 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 56432, derived from the frequency rank of both members and their visual similarity.
slough is recorded at frequency rank #26,965, classified as anoun, pronounced /slʌf/. slush is at rank #29,467, tagged as anoun, pronounced /slʌʃ/.
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 56432, this pair ranks #126,358 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of slough vs slush
Shared letters: hlsu. Private to "slough": go. Private to "slush": -.
"slough" · 6 letters · shape CCVVCC · "slush" · 5 letters · shape CCVCC
Known mistypes of this pair
Frequently Asked Questions
Do "slough" and "slush" mean the same thing in a sentence?
In ordinary English text, does "slough" or "slush" show up more?
Useful next steps
Eye-level mix-up between "slough" and "slush" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "slough" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "slush" - compare definitions side by side with the headword page. Word entry
- This pair ranks #126,358 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "slough" and "slush" also get mixed up with nearby pairs, the highest-scored neighbour is "slurp vs slush". 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 #126,358 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.