Definition of missus noun from the Oxford Advanced American Dictionary

 

missus

 noun
noun
NAmE//ˈmɪsəz//
 
(old-fashioned)(informal)
 
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(used after “the,” “my,” “your,” “his”) a man's wife How's the missus (= your wife)? My missus won't let me smoke in the house.
See the Oxford Advanced Learner's Dictionary entry: missus