# f vs FW

> English confusable word pair

## The two words

### f
*character · IPA /ɛf/ · frequency rank #873*
The sixth letter of the English alphabet, called ef and written in the Latin script.

### FW
*noun · frequency rank #23,547*
Abbreviation of firewall.

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