# REM vs RMA

> English confusable word pair

## The two words

### REM
*noun · frequency rank #20,207*
Initialism of rapid eye movement.

### RMA
*noun · frequency rank #46,739*
Initialism of return merchandise authorization /return merchandise authorisation.

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