Definition of détente noun from the Oxford Advanced American Dictionary

 

détente

 noun
(also detente)noun
NAmE//deɪˈtɑnt//
 
[uncountable](from French)(formal)
 
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an improvement in the relationship between two or more countries that have been unfriendly toward each other in the past a new international climate of détente
See the Oxford Advanced Learner's Dictionary entry: détente