English

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

 

ex

 noun
noun
BrE BrE//eks//
 
; NAmE NAmE//eks//
 
Separation
 
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(pl. exes) (informal) a person’s former wife, husband or partner The children are spending the weekend with my ex and his new wife. See related entries: Separation Word Originnoun early 19th cent.: independent usage of ex-.
See the Oxford Advanced American Dictionary entry: ex