# PSA vs psalm

> English confusable word pair

## The two words

### PSA
*noun · frequency rank #15,483*
Initialism of polysialic acid.

### psalm
*noun · IPA /sɑːm/ · frequency rank #13,789*
A sacred song; a poetical composition for use in the praise or worship of God.

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