Word
quisling
/ˈkwizliŋ/
noun
卖国贼；内奸
a person who collaborates with an enemy occupying force
- 1.
someone who collaborates with an enemy occupying force
与敌方占领军合作的人；卖国贼
与敌方占领军合作的人；卖国贼；卖国贼；[法] 卖国贼；内奸；通敌分子
In use
The villagers suspected the old shopkeeper of being a quisling after he started supplying the enemy troops.
In the spy novel, the protagonist discovers that his trusted colleague is actually a quisling.
History books label him a quisling for betraying his country during the occupation.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.