# PCA vs pec

> English confusable word pair

## The two words

### PCA
*name · frequency rank #33,786*
Abbreviation of Proto-Central Algonquian.

### pec
*noun · frequency rank #47,251*
The pectoralis major muscle.

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