# slab vs slack

> English confusable word pair

## The two words

### slab
*noun · IPA /slæb/ · frequency rank #15,277*
A large, flat piece of solid material; a solid object that is large and flat.

### slack
*noun · IPA /slæk/ · frequency rank #11,118*
The part of anything that hangs loose, having no strain upon it.

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