con·​trol·​ler | \ kən-ˈtrō-lər How to pronounce controller (audio) , ˈkän-ˌtrō- How to pronounce controller (audio) \

Definition of controller

c : the chief accounting officer of a business enterprise or an institution (such as a college)
2a : one that controls or has power or authority to control air traffic controller

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Other Words from controller

controllership \ kən-​ˈtrō-​lər-​ˌship How to pronounce controllership (audio) , ˈkän-​ˌtrō-​ \ noun

Synonyms for controller


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Examples of controller in a Sentence

the controllers for the video game system seem fairly well designed
Recent Examples on the Web Its protagonist is Sandy Jenkins, the former corporate controller at Collin Street Bakery who managed to siphon $16 million from the company before pleading guilty to felony charges in 2014 and receiving a 10-year prison sentence. Dan Singer, Dallas News, "As if ‘Cheer’ wasn’t enough, Corsicana fruitcake scandal film offers the small town an encore," 20 Feb. 2020 In addition to the FBI investigation, the city attorney and controller’s offices are engaged in far-reaching internal probes. Dominic Fracassa,, "SF corruption probe: Mayor London Breed dated Mohammed Nuru years ago," 14 Feb. 2020 My first product is basically a kind of two-channel brushless motor controller for domestic robots. Lauren Goode, Wired, "How a Space Engineer Made Her Own Rotary Cell Phone," 12 Feb. 2020 Zobayan requested flight following, in which controllers track an aircraft to provide advisories along the way. New York Times, "‘Helicopter Went Down, Flames Seen’: Kobe Bryant’s Last Flight," 8 Feb. 2020 It was meant to mess with Schneider Electric's emergency shutdown controllers and was only discovered because the attackers accidentally set off the malware and shut down the plant. Courtney Linder, Popular Mechanics, "After Targeting Utilities, Ransomware Is Now More Dangerous Than Ever," 4 Feb. 2020 Scientists have implanted tiny controllers in live jellyfish that use electric pulses to direct the animals’ movement. Kate Baggaley, Popular Science, "Bionic jellyfish can swim three times faster," 31 Jan. 2020 Taylor uses an ordinary Playstation controller — no special modifications — and often plays under the screen name BLKMANSCHESS. Jc Reindl, Detroit Free Press, "Young Detroit man ready to earn a living playing NBA esports," 30 Jan. 2020 The larger HomeSoap product can fit tablets and other items like remote controls and game controllers. Jessica Migala, NBC News, "Best UV light sanitizers for your smartphone and other devices 2020," 22 Jan. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'controller.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of controller

15th century, in the meaning defined at sense 1a

History and Etymology for controller

Middle English countreroller, from Anglo-French contreroulur, from contreroule

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Time Traveler for controller

Time Traveler

The first known use of controller was in the 15th century

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Last Updated

24 Feb 2020

Cite this Entry

“Controller.” Dictionary, Merriam-Webster, Accessed 25 Feb. 2020.

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More Definitions for controller


How to pronounce controller (audio) How to pronounce controller (audio)

English Language Learners Definition of controller

: a person who is in charge of the money received and paid out by a business or college
: a person who directs the action of something
: a device or piece of equipment used to operate a machine, vehicle, or system


con·​trol·​ler | \ kən-ˈtrō-lər, ˈkän-ˌtrō- How to pronounce controller (audio) \

Legal Definition of controller

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