Which to use
“sledge” and “sludge” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #26,603
- “sledge” frequency rank
- #21,661
- “sludge” frequency rank
- 48264
- confusion score
Side-by-Side Comparison
| Feature | sledge | sludge |
|---|---|---|
| Definition | A heavy, long handled maul or hammer used to drive stakes, wedges, etc. | Solids separated from suspension in a liquid. |
Where the eye mixes sledge and sludge
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.
Look-alike desk: sledge vs sludge
A purely visual mix-up. sledge (/slɛd͡ʒ/) and sludge (/slʌd͡ʒ/) 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 a single letter - e in “sledge” becomes u in “sludge”. Our composite confusion score for this pair is 48264, derived from the frequency rank of both members and their visual similarity.
sledge is recorded at frequency rank #26,603, classified as anoun, pronounced /slɛd͡ʒ/. sludge is at rank #21,661, tagged as anoun, pronounced /slʌd͡ʒ/.
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 48264, this pair ranks #194,744 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of sledge vs sludge
Shared letters: degls. Private to "sledge": -. Private to "sludge": u.
"sledge" · 6 letters · shape CCVCCV · "sludge" · 6 letters · shape CCVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "sledge" for "sludge" ever safe?
In ordinary English text, does "sledge" or "sludge" show up more?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "sledge" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sludge" - compare definitions side by side with the headword page. Word entry
- This pair ranks #194,744 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "sledge" and "sludge" also get mixed up with nearby pairs, the highest-scored neighbour is "sleaze vs sledge". 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 #194,744 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.