Definition of quisling noun from the Oxford Advanced Learner's Dictionary

 

quisling

 noun
noun
BrE BrE//ˈkwɪzlɪŋ//
 
; NAmE NAmE//ˈkwɪzlɪŋ//
 
(disapproving)
 
jump to other results
a person who helps an enemy that has taken control of his or her country synonym collaborator Word Origin Second World War: from the name of Major Vidkun Quisling (1887–1945), the Norwegian army officer and diplomat who ruled Norway on behalf of the German occupying forces (1940–45).
See the Oxford Advanced American Dictionary entry: quisling