# tuff vs tux

> English confusable word pair

## The two words

### tuff
*noun · IPA /tʌf/ · frequency rank #29,499*
A light porous rock, now especially a rock composed of compacted volcanic ash varying in size from fine sand to coarse gravel.

### tux
*noun · IPA /tʌks/ · frequency rank #35,996*
Clipping of tuxedo

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