fifth columnism

noun

The activities of the fifth column, secretly undermining another organization.

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounfifth columnism (uncountable)
  1. uncountableThe activities of the fifth column, secretly undermining another organization.

Origin

From fifth column + -ism.

Full word history & related roots →
Cite this entry
APA

fifth columnism. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/fifth%20columnism

MLA

“fifth columnism.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/fifth%20columnism. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “fifth columnism,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/fifth%20columnism.

Source: fifth columnism on Wiktionary, CC BY-SA 4.0.