Which to use
“sick” is a verb and “sil” is a noun - they look or sound alike but fill different roles in a sentence.
- #45,317
- “sick” frequency rank
- #20,575
- “sil” frequency rank
- 65892
- confusion score
Side-by-Side Comparison
| Feature | sick | sil |
|---|---|---|
| Definition | Deuxième personne du singulier de l’impératif présent de sicken. | Argile, variété d’ocre, dont les Anciens faisaient des poteries rouges ou jaunes. |
Where the eye mixes sick and sil
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses sick with sil
These two trip readers on the page rather than in the ear: sick is \zɪk\ while sil is \sil\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 65892, derived from the frequency rank of both members and their visual similarity.
sick is recorded at frequency rank #45,317, classified as averb, pronounced \zɪk\. sil is at rank #20,575, tagged as anoun, pronounced \sil\.
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 65892, this pair ranks #70,316 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of sick vs sil
Shared letters: is. Private to "sick": ck. Private to "sil": l.
"sick" · 4 letters · shape CVCC · "sil" · 3 letters · shape CVC
Known mistypes of this pair
- sick ← isck · scik · sicck · sickk · sikc · ssick
Frequently Asked Questions
Do "sick" and "sil" mean the same thing in a sentence?
Frequency check: "sick" vs "sil" - which ranks higher?
After this comparison
Eye-level mix-up between "sick" and "sil" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "sick" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sil" - compare definitions side by side with the headword page. Word entry
- This pair ranks #70,316 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "sick" and "sil" also get mixed up with nearby pairs, the highest-scored neighbour is "sicav vs sick". 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 #70,316 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.