# fissure

> English word · Noun · IPA /ˈfɪʃ.ə/ · frequency rank #36,143

## Definitions
1. A long, narrow crack or opening made by breaking or splitting, especially in rock or earth.
2. A groove, deep furrow, elongated cleft or tear between body parts or in the substance of an organ.
3. A break or slit in tissue usually at the junction of skin and mucous membrane.
4. A state of incompatibility or disagreement.

## Etymology
From Middle English fissure, from Old French fissure, from Latin fissūra (“a cleft, chink”), from findō (“to cleave, split, divide”) + -tūra (nominal suffix).

## Easily confused with
- **fixture** (https://plainspell.com/en/vs/fissure-vs-fixture)
- **figure** (https://plainspell.com/en/vs/figure-vs-fissure)
- **fissile** (https://plainspell.com/en/vs/fissile-vs-fissure)
- **fisher** (https://plainspell.com/en/vs/fisher-vs-fissure)

## Common misspellings (8)
`ffissure`, `fissrue`, `fissuer`, `fissurre`, `fisure`, `fisusre`, `fsisure`, `ifssure`

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