# epithelial vs epithelium

> English confusable word pair

## The two words

### epithelial
*adjective · frequency rank #26,776*
Of or pertaining to the epithelium.

### epithelium
*noun · IPA /ˌɛpɪˈθiːlɪəm/ · frequency rank #39,802*
A membranous tissue composed of one or more layers of cells which forms the covering of most internal and external surfaces of the body and its organs: internally including the lining of vessels and other small cavities, and externally being the skin.

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