- fifth column as a noun:
- 1
fifth column
noun
1 fifth column
A subversive group that supports the enemy and engages in espionage or sabotage; an enemy in your midst.
synonym: Trojan horse.
Dutch: vijfde colonne
Moby thesaurus: Judas-like, Trojan horse, Trojan-horse, betraying, collaborationist, collaborator, crypto, double-crossing, fellow traveler, fifth columnist, fraternizer, quisling, quislingistic, saboteur, security risk, subversive, traitorous, treasonable, treasonous, turncoat ... show more.
debug info: 0.0239