# ARP vs ass

> English confusable word pair

## The two words

### ARP
*noun · frequency rank #41,514*
Initialism of absolute refractory period.

### ass
*noun · IPA /æs/ · frequency rank #1,065*
Any of several species of horse-like animals, especially Equus asinus, the domesticated of which are used as beasts of burden.

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