# MI9

> English word · Proper noun

## Definitions
1. A section of British military intelligence in World War II; they were charged with aiding resistance fighters in enemy territory and recovering Allied troops from behind enemy lines.

## Etymology
Abbreviation of Military Intelligence, Section 9.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/mi9
