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

 

revanchism

 noun
noun
BrE BrE//rɪˈvæntʃɪzəm//
 
; NAmE NAmE//rɪˈvæntʃɪzəm//
 
; BrE BrE//ˈvænʃɪzəm//
 
; NAmE NAmE//ˈvænʃɪzəm//
 
[uncountable]
 
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a policy of attacking somebody who has attacked you, especially by a country in order to get back land Word Origin 1950s: from French revanche, ‘revenge’ + -ism. The form revanchist dates from the 1920s.
See the Oxford Advanced American Dictionary entry: revanchism