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English definition of “step out on sb”

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step out on sb

US informal
verb [I + adv/prep] uk phrasal verb with step   /step/ (-pp-) us  
If you step out on your husband, wife, or usual sexual partner, you have sexual relationships with people other than them.
Translations of “step out on sb”
in Chinese (Traditional) 對(伴侶)不忠…
in Chinese (Simplified) 对(伴侣)不忠…
(Definition of step out on sb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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