# appt vs ARP

> English confusable word pair

## The two words

### appt
*verb · frequency rank #48,065*
Abbreviation of appoint.

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

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