# FEI vs fly

> English confusable word pair

## The two words

### FEI
*name · frequency rank #22,967*
Initialism of Federal Executive Institute.

### fly
*noun · IPA /flaɪ/ · frequency rank #1,827*
Any insect of the order Diptera; characterized by having two wings (except for some wingless species), also called true flies.

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