# flack vs fuck

> English confusable word pair

## The two words

### flack
*verb · IPA /flæk/ · frequency rank #30,799*
To flutter; palpitate.

### fuck
*verb · IPA /fʌk/ · frequency rank #396*
To have sexual intercourse; to copulate.

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