English

Definition of M abbreviation from the Oxford Advanced Learner's Dictionary

     

    M

     abbreviation
    abbreviation
    BrE BrE//em//
     
    ; NAmE NAmE//em//
     
     
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  1. 1(also med.) (especially for sizes of clothes) medium S M and L (= small, medium and large)
  2. 2(used with a number to show the name of a British motorway ) heavy traffic on the M25
See the Oxford Advanced American Dictionary entry: M