A person who secretly accuses, or gives evidence against, another, often for a reward
A spy employed by two rival espionage organizations
A spy who operates from within an organization, especially a double agent operating against his or her own government from within its intelligence establishment.
Based upon, or consisting of, a surgical operation or operations.
To search as a scout:
To secretly spy on or investigate, especially into the private personal life of others.
Of or about spies or espionage
a person secretly employed in espionage for a government
Find another word for secret-agent. In this page you can discover 13 synonyms, antonyms, idiomatic expressions, and related words for secret-agent, like: informer, double-agent, inside man, mole, intelligence agent, operative, scout, snoop, spy, undercover agent and undercover man.