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Definition of S abbreviation from the Oxford Advanced American Dictionary

     

    S

     abbreviation
    abbreviation
    NAmE//ɛs//
     
    (in writing)
     
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  1. 1S. (also So.) south; southern S. Boston
  2. 2(pl. SS) Saint
  3. 3(especially for sizes of clothes) small
  4. 4siemens see s and h
See S in the Oxford Advanced Learner's Dictionary