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fifth-column

see definition of fifth-column
  • as infifth column
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Synonyms for fifth-column

noun secret or subversive group
  • Trojan horse
  • collaborators
  • collaborators of enemy
  • infiltrators
  • saboteurs
  • subversives
  • underground
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.