# MEST

> English word · Proper noun · IPA /mɛst/

## Definitions
1. The physical universe, the universe of sensory perception.

## Etymology
Coined by Scientology founder L. Ron Hubbard as an acronym of matter, energy, space and time.

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