# lesion

> English word · Noun · IPA /ˈliːʒən/ · frequency rank #26,147

## Definitions
1. A wound or injury.
2. An infected or otherwise injured or diseased organ or part, especially such on a patch of skin.
3. Any compound formed from damage to a nucleic acid.
4. Injury or an unfair imbalance in a commutative contract wherein the consideration is less than half of the market value, which then serves as a basis for the injured party to sue to rescind the agreement.

## Etymology
From Middle English lesioun, from Old French lesion, from Latin laesiō (“injury”), itself from laesus, perfect passive participle of laedō (“I injure, hurt”).

## Easily confused with
- **lion** (https://plainspell.com/en/vs/lesion-vs-lion)
- **levin** (https://plainspell.com/en/vs/lesion-vs-levin)
- **Lewin** (https://plainspell.com/en/vs/lesion-vs-lewin)
- **lesson** (https://plainspell.com/en/vs/lesion-vs-lesson)
- **Lisbon** (https://plainspell.com/en/vs/lesion-vs-lisbon)
- **lotion** (https://plainspell.com/en/vs/lesion-vs-lotion)
- **lessen** (https://plainspell.com/en/vs/lesion-vs-lessen)
- **Liston** (https://plainspell.com/en/vs/lesion-vs-liston)
- **Leyton** (https://plainspell.com/en/vs/lesion-vs-leyton)
- **lessons** (https://plainspell.com/en/vs/lesion-vs-lessons)
- **lexicon** (https://plainspell.com/en/vs/lesion-vs-lexicon)
- **Leon** (https://plainspell.com/en/vs/leon-vs-lesion)
- **lemon** (https://plainspell.com/en/vs/lemon-vs-lesion)
- **Lenin** (https://plainspell.com/en/vs/lenin-vs-lesion)
- **legion** (https://plainspell.com/en/vs/legion-vs-lesion)
- **Lennon** (https://plainspell.com/en/vs/lennon-vs-lesion)
- **lesbian** (https://plainspell.com/en/vs/lesbian-vs-lesion)

## Common misspellings (9)
`elsion`, `leison`, `lesino`, `lesionn`, `lesoin`, `lession`, `letion`, `llesion`, `lseion`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/lesion