double agent

1. 1.

   a spy who works for two mutually antagonistic countries

   Broaderspy

Questions about double agent

What does double agent mean?

double agent means "a spy who works for two mutually antagonistic countries".

Is double agent a common word?

double agent is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.