# sixth column

> English word · Noun

## Definitions
1. An additional group, beyond an identified fifth column, of people which clandestinely undermines a larger group, such as a nation, to which it is expected to be loyal.
2. Used other than figuratively or idiomatically: see sixth, column.

## Etymology
Extension of fifth column.

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