Which to use
“sick” is an adjective and “sin” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,410
- “sick” frequency rank
- #3,848
- “sin” frequency rank
- 5258
- confusion score
Side-by-Side Comparison
| Feature | sick | sin |
|---|---|---|
| Definition | In poor health; ill. | A violation of divine will or religious law. |
Where the eye mixes sick and sin
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between sick and sin
These two trip readers on the page rather than in the ear: sick is /ˈsɪk/ while sin is /sɪn/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 5258, 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/. sin is at rank #3,848, tagged as anoun, pronounced /sɪn/.
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 5258, this pair ranks #516,003 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of sick vs sin
Shared letters: is. Private to "sick": ck. Private to "sin": n.
"sick" · 4 letters · shape CVCC · "sin" · 3 letters · shape CVC
Known mistypes of this pair
- sick ← isck · scik · sicck · sickk · sikc · ssick
Frequently Asked Questions
Do "sick" and "sin" mean the same thing in a sentence?
Frequency check: "sick" vs "sin" - which ranks higher?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "sick" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sin" - compare definitions side by side with the headword page. Word entry
- This pair ranks #516,003 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "sick" and "sin" also get mixed up with nearby pairs, the highest-scored neighbour is "Sif vs sin". 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 #516,003 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.