controller

noun

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

Synonyms of 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Your phone doubles as both the controller and the protagonist’s in-world smartphone. — Alison Foreman, IndieWire, 7 July 2026 But to forcibly take their jobs from all controllers prematurely simply to follow some rigid sunset script is a terrible loss for the very shareholders the governistas claim to protect. — Jeffrey Sonnenfeld, Fortune, 6 July 2026 The testing evaluated the AI’s real-time performance under fluctuating conditions with the controller turned both on and off. — Mrigakshi Dixit, Interesting Engineering, 6 July 2026 Engineers are unsure of the condition of Swift’s thermal insulation, and ground controllers will take a cautious approach to determining where and when Link’s robotic arms can capture the satellite. — Stephen Clark, ArsTechnica, 6 July 2026 See All Example Sentences for controller

Word History

Etymology

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

First Known Use

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

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Browse Nearby Words

controlled substance
controller
controllership
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Cite this Entry

“Controller.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/controller. Accessed 9 Jul. 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

More from Merriam-Webster on controller

Nglish: Translation of controller for Spanish Speakers

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