# PCR vs PD

> English confusable word pair

## The two words

### PCR
*noun · IPA /pi si ɑɹ/ · frequency rank #23,937*
Initialism of polymerase chain reaction.

### PD
*noun · frequency rank #11,261*
Initialism of police department.

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