From Wiktionary, the free dictionary

From Middle English countreroller, from Anglo-Norman contreroulour and Middle French contreroleur (French contrôleur), from Medieval Latin contrārotulātor, from *contrārotulāre (from which control). Doublet of comptroller. By surface analysis, control +‎ -er.

• (Received Pronunciation) IPA^(key): /kənˈtɹəʊlə/
• (General American) IPA^(key): /kənˈtɹoʊlɚ/
• Hyphenation: con‧trol‧ler
• Homophone: comptroller (one pronunciation)
• Rhymes: -əʊlə(ɹ)

controller (plural controllers)

1. One who controls something.

   • 1700, John Dryden, transl., The Wife of Bath, Her Tale‎^[1]:

     The great controller of our fate / Deigned to be man, and lived in low estate.

2. (electronics) Any electric or mechanical device for controlling a circuit or system.

   • 1963 February, Cecil J. Allen, “Locomotive Running Past and Present”, in Modern Railways, page 115:

     Nothing more can be squeezed out of the motive power unit once the master controller has been moved to full on.

3. (business) The chief accounting officer which audits, and manages the financial affairs of a company or government; a comptroller.
4. (computer hardware) A mechanism that controls or regulates the operation of a machine, especially a peripheral device in a computer.
5. (video games) A hardware device designed to allow the user to play video games.

   Synonym: game controller
6. (nautical) An iron block, usually bolted to a ship's deck, for controlling the running out of a chain cable. The links of the cable tend to drop into hollows in the block, and thus hold fast until disengaged.
7. (espionage) The person who supervises and handles communication with an agent in the field.
8. (linguistics) The subject of a control verb. See Control (linguistics)
   • 2004, Paul K. Kroeger, Analyzing Syntax: A Lexical-Functional Approach, Cambridge University Press, →ISBN (hardback), →ISBN (paperback), chapter 5.4, 117:

     The choice of controller is determined by the matrix verb. If, as in (30b) and (3la), the main verb does not subcategorize for an OBJ, then the controller is the matrix SUBJ. In this case the complement clause is interpreted as having the same subject as the main clause. If the main verb does take an OBJ, the controller is the matrix patient.

9. (software architecture) In software applications using the model-view-controller design pattern, the part or parts of the application that treat input and output, forming an interface between models and views.

• (one who controls): administrator, chief, foreman, head, head man, organizer, overseer, superintendent, supervisor
• (one who manages financial affairs): comptroller
• (device that regulates a machine's operation): driver

• (computing): fuzzy controller, memory controller
• (computing, electronics): game controller, microcontroller, nanocontroller
• (software architecture): model–view–controller

• controller on Wikipedia.Wikipedia

Borrowed from English controller.

controller c (singular definite controlleren, plural indefinite controllere or controllers)

1. (business) A person who audits, and manages the financial affairs of a company or government, a comptroller, a controller.
2. (computing) A mechanism that controls or regulates the operation of a machine, especially a peripheral device in a computer, a controller.

Borrowed from English controller.

• IPA^(key): /ˌkɔnˈtrɔ.lər/
• Hyphenation: con‧trol‧ler
• Rhymes: -ɔlər

controller m (plural controllers, diminutive controllertje n)

1. (video games) controller
2. (business) controller (a person who audits, and manages the financial affairs of a company or government)