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Definition of cog noun from the Oxford Advanced American Dictionary

     

    cog

     noun
    noun
    NAmE//kɑɡ//
     
    , NAmE//kɔɡ//
     
     
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  1. 1one of a series of teeth on the edge of a wheel that fit between the teeth on the next wheel and cause it to move
  2. 2= cogwheel
    3. Idioms
    a cog in the machine/wheel (informal)
     
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    a person who is a small part of a large organization
See cog in the Oxford Advanced Learner's Dictionary
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