# perp vs pip

> English confusable word pair

## The two words

### perp
*noun · IPA /pɝp/ · frequency rank #44,400*
A perpetrator.

### pip
*noun · IPA /pɪp/ · frequency rank #18,396*
Any of various respiratory diseases in birds, especially infectious coryza.

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