# PAPI vs ppm

> English confusable word pair

## The two words

### PAPI
*noun · IPA /ˈpæpi/ · frequency rank #27,591*
Abbreviation of Performance Application Programming Interface.

### ppm
*noun · frequency rank #23,949*
Initialism of parts per million (10000 ppm = 1%).

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