Definition of "secret agent" [secret agent]

• A member of an intelligence agency whose identity or affiliation is kept confidential. (noun)

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• "It was then that deVille was asked if he would like to carry on the real war, the war against the capitalist enemy as a secret agent after the fascists had been destroyed."
• "“He was instructed,” writes the secret agent Landrieux, “as to what might well be drawn from this war for the French treasury.”"
• "At the request of Queen Elizabeth, Vixen must team up with Christopher Marlowe, dashing playwright and part-time secret agent to uncover Guy Fawke's nefarious plot to blow up the Houses of Parliament."