Fifth columnist and Secret agent

Fifth columnist

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Fifth columnist noun – A member of a clandestine subversive organization who tries to help a potential invader.
Secret agent and fifth columnist are semantically related. In some cases you can use "Secret agent" instead a noun phrase "Fifth columnist".
Synonyms for Fifth columnist

Secret agent

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Secret agent noun – A person secretly employed in espionage for a government.
Fifth columnist and secret agent are semantically related. You can use "Fifth columnist" instead a noun phrase "Secret agent".
Synonyms for Secret agent
Cite this Source
Secret agent and Fifth columnist. (2016). Retrieved 2021, June 23, from https://thesaurus.plus/related/fifth_columnist/secret_agent
Fifth columnist & Secret agent. N.p., 2016. Web. 23 Jun. 2021. <https://thesaurus.plus/related/fifth_columnist/secret_agent>.
Secret agent or Fifth columnist. 2016. Accessed June 23, 2021. https://thesaurus.plus/related/fifth_columnist/secret_agent.

Synonyms for fifth columnist
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Synonyms for secret agent
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Google Ngram Viewer shows how "fifth columnist" and "secret agent" have occurred on timeline: