Which to use
“leper” and “letter” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #37,540
- “leper” frequency rank
- #1,196
- “letter” frequency rank
- 38736
- confusion score
Side-by-Side Comparison
| Feature | leper | letter |
|---|---|---|
| Definition | A person who has leprosy, a person suffering from Hansen's disease. | A symbol in an alphabet. |
Where the eye mixes leper and letter
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. leper runs 5 letters (CVCVC) against letter's 6 (CVCCVC) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: leper vs letter
A purely visual mix-up. leper (/ˈlɛpɚ/) and letter (/ˈlɛtə/) 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 1 letter(s) in length. Our composite confusion score for this pair is 38736, derived from the frequency rank of both members and their visual similarity.
leper is recorded at frequency rank #37,540, classified as anoun, pronounced /ˈlɛpɚ/. letter is at rank #1,196, tagged as anoun, pronounced /ˈlɛtə/.
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 38736, this pair ranks #283,241 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of leper vs letter
Shared letters: elr. Private to "leper": p. Private to "letter": t.
"leper" · 5 letters · shape CVCVC · "letter" · 6 letters · shape CVCCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "leper" for "letter" ever safe?
Frequency check: "leper" vs "letter" - which ranks higher?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "leper" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "letter" - compare definitions side by side with the headword page. Word entry
- This pair ranks #283,241 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "leper" and "letter" also get mixed up with nearby pairs, the highest-scored neighbour is "leper vs lope". 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 #283,241 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.