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



    BrE BrE//sʌb//
    ; NAmE NAmE//sʌb//
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  1. 1= submarine
  2. 2a substitute who replaces another player in a team He came on as sub.
  3. 3(British English) a subscription (= money that you pay regularly when you are a member of a club, etc.)
  4. 4(British English) a subeditor
  5. 5(North American English, informal) a substitute teacher
See the Oxford Advanced American Dictionary entry: sub