# fas vs fu

> English confusable word pair

## The two words

### fas
*noun · frequency rank #27,454*
A border or fringe.

### fu
*intj · frequency rank #8,543*
Initialism of fuck you.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/fas-vs-fu