controller

1 of 2

noun (1)

con·​trol·​ler kən-ˈtrō-lər How to pronounce controller (audio) ˈkän-ˌtrō- How to pronounce controller (audio)
Synonyms of controllernext
1
a
: comptroller sense 1
b
: comptroller sense 2
c
: the chief accounting officer of a business enterprise or an institution (such as a college)
2
a
: one that controls or has power or authority to control
air traffic controller
b
: control sense 3a
controllership
kən-ˈtrō-lər-ˌship How to pronounce controller (audio)
ˈkän-ˌtrō-
noun

controllership

2 of 2

noun (2)

con·​trol·​ler·​ship kən-ˈtrō-lər-ˌship How to pronounce controllership (audio)
ˈkän-ˌtrō-
plural -s
1
: the office of controller
2
: the position and functions of a controller

Synonyms of controller

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Noun (1)

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Examples of controller in a Sentence

Noun (1) the controllers for the video game system seem fairly well designed
Recent Examples on the Web
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Noun
The team plans to investigate additional vulnerabilities involving robot controllers and perception systems, including situations that could cause legged robots to fall. — Neetika Walter, Interesting Engineering, 21 Oct. 2026 Japanese flight controllers want to avoid powdery soil and rough terrain when the mothership, a four-legged stationary lander, descends to the surface to gather samples in late 2028 or 2029. — Arkansas Online, 21 Oct. 2026 The latest developments from the AI industry have included the launch of AI agents that can also perform online tasks for their controllers. — Jacob Feldman, Sportico.com, 19 Oct. 2026 Flight controllers burst into applause and jumped to their feet, shaking hands and embracing. — ABC News, 19 Oct. 2026 See All Example Sentences for controller

Word History

Etymology

Noun (1)

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

First Known Use

Noun (1)

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

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

Phrases Containing controller

Rhymes for controller

See All Rhymes for controller

Browse Nearby Words

controlled substance
controller
controllership
See all Nearby Words

Cite this Entry

“Controller.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/controller. Accessed 27 Oct. 2026.

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Kids Definition

controller

noun
con·​trol·​ler kən-ˈtrō-lər How to pronounce controller (audio) ˈkän-ˌtrō-lər How to pronounce controller (audio)
1
: the chief accounting officer of a business or institution
2
: a person who controls
an air traffic controller
3
: control entry 2 sense 3a

Legal Definition

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