# FISA vs flea

> English confusable word pair

## The two words

### FISA
*name · frequency rank #32,399*
Acronym of Foreign Intelligence Surveillance Act.

### flea
*noun · IPA /fliː/ · frequency rank #16,711*
A small, wingless, parasitic insect of the order Siphonaptera, renowned for its bloodsucking habits and jumping abilities.

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