# USD vs used

> English confusable word pair

## The two words

### USD
*noun · frequency rank #7,515*
Initialism of unified school district.

### used
*verb · IPA /juːzd/ · frequency rank #156*
simple past and past participle of use

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