Which to use
“sick” is an adjective and “sil” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,410
- “sick” frequency rank
- #29,461
- “sil” frequency rank
- 30871
- confusion score
Side-by-Side Comparison
| Feature | sick | sil |
|---|---|---|
| Definition | In poor health; ill. | A yellowish pigment used by painters in ancient times. |
Letter map: sick vs sil
Shared letters muted; letters that set sick and sil apart highlighted. Shared run: 2.
Role in the sentence - sick and sil
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sick is anadjective and silanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 30871, derived from the frequency rank of both members and their visual similarity.
sick is recorded at frequency rank #1,410, classified as anadj, pronounced /ˈsɪk/. sil is at rank #29,461, tagged as anoun.
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 30871, this pair ranks #350,905 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
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
You've compared "sick" and "sil". Here's where to go from here.
- 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 #350,905 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "sick" and "sil" also get mixed up with nearby pairs, the highest-scored neighbour is "Sif vs sil". 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 #350,905 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.