# aff vs affix

> English confusable word pair

## The two words

### aff
*noun · IPA /æf/ · frequency rank #31,048*
Clipping of affirmation.

### affix
*noun · IPA /ˈæf.ɪks/ · frequency rank #45,191*
A bound morpheme added to a word’s stem, such as a prefix or suffix.

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