ˌdouble ˈagent BrE AmE noun [countable]
someone who finds out an enemy country’s secrets for their own country but who also gives secrets to the enemy ⇨ spy
ˌdouble ˈagent BrE AmE noun [countable]
someone who finds out an enemy country’s secrets for their own country but who also gives secrets to the enemy ⇨ spy
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012