noun a person who works secretly to aid an enemy; traitor
adjective relating to or characteristic of a fifth columnist
A fifth columnist is a person who works within a country to help an enemy during wartime.
In politics, a fifth columnist may refer to someone who secretly works against their own government or political party.
The term 'fifth columnist' originated during the Spanish Civil War, referring to nationalists within Madrid who supported General Franco's forces.
Fifth columnists are often associated with espionage activities, providing information or support to an enemy.
A writer may use the term 'fifth columnist' in a political thriller novel to refer to a character who secretly supports an enemy or opposing group.
A journalist may use the term 'fifth columnist' in an article to describe individuals or organizations working against their own country's interests.
A historian may use the term 'fifth columnist' in a research paper to analyze the role of internal sabotage during wartime conflicts.
A political analyst may use the term 'fifth columnist' in a commentary to discuss the impact of covert infiltration on national security.