# pcm vs PSU

> English confusable word pair

## The two words

### pcm
*adverb · frequency rank #41,305*
Initialism of per calendar month.

### PSU
*name · frequency rank #29,799*
Initialism of Pennsylvania State University.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/pcm-vs-psu