Definition of controller in English:


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  • 1A person or thing that directs or regulates something.

    ‘the power controller on a subway train’
    • ‘The fan will still get power from the fan controller; it will just be monitored by both.’
    • ‘The engine and automatic transmission controllers are combined into a single processor.’
    • ‘It had been alleged that a particular dealer had behaved fraudulently and the controller duly exercised the power.’
    • ‘The electronics of fan controllers can sometimes run very hot.’
    • ‘As the helicopters arrived, controllers smoothly directed them to the awaiting refuelers.’
    • ‘In effect, they act as replacement storage controllers for the devices they are virtualizing.’
    • ‘Mission controllers received a signal from the craft some 90 minutes after launch, confirming that all was well.’
    • ‘This would be controlled automatically by the lower element temperature controllers.’
    • ‘Data is fed from the antenna to the robot controller, enabling it to sense its position.’
    • ‘A trainee controller mistakenly directed a plane to descend through the flight level of another plane.’
    • ‘The CCTV will be monitored by controllers in Bradford who have direct contact with police.’
    • ‘Electricity board controllers were able to re-route power to most areas quite quickly, said the spokesman.’
    • ‘It takes a year of regular training before controllers can consider themselves fully fledged.’
    • ‘Hughes, who is an air-traffic controller, also invests regularly as an individual.’
    • ‘The probe was also used to help train flight controllers how to acquire radio signals from space.’
    • ‘As for comfort, I think I read that you can just rest it on your thigh like a regular controller.’
    • ‘The pin in the processor connected to the controller is called the interrupt request line.’
    • ‘According to the police reports, no one tried to come to her help or even pulled the signal to warn a controller.’
    • ‘Enthusiasts want to see the drivers do the business, not an electronic controller from the pits.’
    • ‘This causes me to not be able to close the door if I install the fan controller.’
    administrator, manager, chairman, chairwoman, chairperson, chair, head, chief, boss, principal, leader, governor, president, premier
    supervisor, controller, regisseur, producer, auteur, choreographer
    1. 1.1A person in charge of an organization's finances.
      ‘the regional controller for the Department of Education’
      • ‘Chief financial officers and controllers are generally thought of as employees of organizations.’
      • ‘Finally the administrative controllers were to be charged with the annual audit of each set of plant accounts.’
      • ‘Central bankers are now more the observers of international finance rather than the controllers of it.’
      • ‘John Punch is the financial controller and Martin Punch is company secretary.’
      • ‘As well as being the finance controller Liz's job began to take on responsibility for human resources and IT.’
      • ‘Ella's ambition is to become a financial controller within the next five to ten years.’
      • ‘So what can he suggest to the financial controller desperately looking for value for money?’
      • ‘Fuel cards allow financial controllers and department heads tighter control over operating budgets.’
      • ‘She worked extremely hard and after 10 years she was promoted to financial controller.’
      • ‘Soon after he left for London, and had a successful career, becoming financial controller of BBC Radio.’
      • ‘It cannot be done and no company would be allowed get away with it by a responsible financial controller.’
      • ‘Why should the bank be prepared to finance a company where the controllers have contributed apparently so little?’
      organizer, manager, producer, stage manager



/kənˈtrōlər/ /kənˈtroʊlər/


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’ (see control). Compare with comptroller.