# FES vs fetus

> English confusable word pair

## The two words

### FES
*noun · frequency rank #39,812*
Initialism of floppy eyelid syndrome

### fetus
*noun · IPA /ˈfiːtəs/ · frequency rank #12,977*
An unborn or unhatched vertebrate showing signs of the mature animal.

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