American English

Definition of cog noun from the Oxford Advanced American Dictionary



    , 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 the Oxford Advanced Learner's Dictionary entry: cog

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