Which to use
“slate” and “sulfate” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #9,397
- “slate” frequency rank
- #22,830
- “sulfate” frequency rank
- 32227
- confusion score
Side-by-Side Comparison
| Feature | slate | sulfate |
|---|---|---|
| Definition | A flake or piece of certain types of stone that tend to cleave into thin layers. | Any salt or ester of sulfuric acid. |
Where the eye mixes slate and sulfate
Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. slate runs 5 letters (CCVCV) against sulfate's 7 (CVCCVCV) - the length gap alone is often enough to separate them once you know to check it.
Visual trap between slate and sulfate
A purely visual mix-up. slate (/sleɪt/) and sulfate (/ˈsʌlfeɪt/) 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 2 letter(s) in length. Our composite confusion score for this pair is 32227, derived from the frequency rank of both members and their visual similarity.
slate is recorded at frequency rank #9,397, classified as anoun, pronounced /sleɪt/. sulfate is at rank #22,830, tagged as anoun, pronounced /ˈsʌlfeɪt/.
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 32227, this pair ranks #339,604 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of slate vs sulfate
Shared letters: aelst. Private to "slate": -. Private to "sulfate": fu.
"slate" · 5 letters · shape CCVCV · "sulfate" · 7 letters · shape CVCCVCV
Known mistypes of this pair
Frequently Asked Questions
Do "slate" and "sulfate" mean the same thing in a sentence?
Which is more common, "slate" or "sulfate"?
After this comparison
Eye-level mix-up between "slate" and "sulfate" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "slate" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sulfate" - compare definitions side by side with the headword page. Word entry
- This pair ranks #339,604 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "slate" and "sulfate" also get mixed up with nearby pairs, the highest-scored neighbour is "sulfate vs sulphate". 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 #339,604 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.