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

     

    controller

     noun
    noun
    BrE BrE//kənˈtrəʊlə(r)//
     
    ; NAmE NAmE//kənˈtroʊlər//
     
    Business people, How machines work
     
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  1. 1a person who manages or directs something, especially a large organization or part of an organization see also air traffic controller
  2. 2(specialist) a device that controls or regulates a machine or part of a machine a temperature controller See related entries: How machines work
  3. 3 (also comptroller) a person who is in charge of the financial accounts of a business company See related entries: Business people
  4. 4= game controller
  5. Word Origin Middle English (denoting a person who kept a duplicate register of accounts): from Anglo-Norman contrerollour, from contreroller ‘keep a copy of a roll of accounts’, from medieval Latin contrarotulare, from contrarotulus ‘copy of a roll’, from contra- ‘against’ + rotulus ‘a roll’. Compare with comptroller.Extra examples He is the new programme controller for BBC2. the company’s controller for global marketing and sales Her current job is marketing controller for South East sales region.
See the Oxford Advanced American Dictionary entry: controller