controller.
One who controls something.
Meaning & usage
One who controls something.
Any electric or mechanical device for controlling a circuit or system.
The chief accounting officer which audits, and manages the financial affairs of a company or government; a comptroller.
A mechanism that controls or regulates the operation of a machine, especially a peripheral device in a computer.
A hardware device designed to allow the user to play video games.
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.
The person who supervises and handles communication with an agent in the field.
The subject of a control verb. See Control (linguistics)
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.
Where this word comes from
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.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.