# cortex

> English word · Noun · IPA /ˈkɔɹtɛks/ · frequency rank #13,126

## Definitions
1. The outer layer of an internal organ or body structure, such as the kidney or the brain.
2. The tissue of a stem or root that lies inward from the epidermis, but exterior to the vascular tissue.
3. The outer surface of a piece of flint.

## Etymology
Borrowed from Latin cortex (“cork, bark”).

## Easily confused with
- **cote** (https://plainspell.com/en/vs/cortex-vs-cote)
- **Cortez** (https://plainspell.com/en/vs/cortex-vs-cortez)
- **cotter** (https://plainspell.com/en/vs/cortex-vs-cotter)
- **courted** (https://plainspell.com/en/vs/cortex-vs-courted)
- **core** (https://plainspell.com/en/vs/core-vs-cortex)
- **Corey** (https://plainspell.com/en/vs/corey-vs-cortex)
- **cores** (https://plainspell.com/en/vs/cores-vs-cortex)
- **codex** (https://plainspell.com/en/vs/codex-vs-cortex)
- **conte** (https://plainspell.com/en/vs/conte-vs-cortex)
- **carte** (https://plainspell.com/en/vs/carte-vs-cortex)
- **comte** (https://plainspell.com/en/vs/comte-vs-cortex)
- **corner** (https://plainspell.com/en/vs/corner-vs-cortex)
- **Carter** (https://plainspell.com/en/vs/carter-vs-cortex)
- **coated** (https://plainspell.com/en/vs/coated-vs-cortex)
- **cartel** (https://plainspell.com/en/vs/cartel-vs-cortex)
- **convex** (https://plainspell.com/en/vs/convex-vs-cortex)
- **Coates** (https://plainspell.com/en/vs/coates-vs-cortex)
- **corset** (https://plainspell.com/en/vs/corset-vs-cortex)
- **cornea** (https://plainspell.com/en/vs/cornea-vs-cortex)
- **Correa** (https://plainspell.com/en/vs/correa-vs-cortex)

## Common misspellings (9)
`ccortex`, `coretx`, `corrtex`, `cortexx`, `corttex`, `cortxe`, `cotrex`, `crotex`, `ocrtex`

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