# aft vs auth

> English confusable word pair

## The two words

### aft
*noun · IPA /ɑːft/ · frequency rank #17,285*
The rear part (after end) of a ship or other vessel.

### auth
*noun · frequency rank #30,696*
Abbreviation of authentication.

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