double agent
noun
1.
a person who spies on a country while pretending to spy for it.
2.
a spy in the service of two rival countries, companies, etc.
Origin
1930-35
Examples from the web for
double agent
There were rumors there might be a third
double agent
.
Sparkling in his role as a conscience-struck
double agent
, he fights intrigue and physical danger to triumph in the end.
British Dictionary definitions for
double agent
double agent
noun
1.
a spy employed by two mutually antagonistic countries, companies, etc
Word Origin and History for
double agent
n.
1935, from
double
(adj.) +
agent
(n.).