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



BrE BrE//eks//
; NAmE NAmE//eks//
jump to other results
(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