# supermax

> English word · Noun · frequency rank #66,325

## Definitions
1. A prison with the highest possible level of security.

## Etymology
From super- + max (as in maximum security prison).

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