controller
noun
con·trol·ler
kən-ˈtrō-lər 
ˈkän-ˌtrō-
ˈkän-ˌtrō-
1
c
: the chief accounting officer of a business enterprise or an institution (such as a college)
2
b
Examples of controller in a Sentence
the controllers for the video game system seem fairly well designed
Recent Examples on the Web
In addition to the race for governor, voters will decide lieutenant governor, controller, treasurer, insurance commissioner and attorney general.
—
John Woolfolk, Mercury News, 18 May 2026
California’s Board of Equalization is a small statewide team — comprised of four people elected to represent districts encompassing some 10 million constituents each, plus the state controller — supervising property taxes and the Alcoholic Beverage Tax and Tax on Insurers programs.
—Kaitlyn Schallhorn, Oc Register, 18 May 2026
Other electrical hardware includes a 3,600-W inverter, EcoFlow power hub with solar controller and tablet-size energy management system with touchscreen interface.
—C.c. Weiss
may 17, New Atlas, 17 May 2026
Sensor system controller interfaces directly to the space The sensor system controller interfaces directly to the space vehicle to receive commands and provide telemetry data for the mission.
—Prabhat Ranjan Mishra, Interesting Engineering, 17 May 2026
See All Example Sentences for controller
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John Woolfolk, Mercury News, 18 May 2026
California’s Board of Equalization is a small statewide team — comprised of four people elected to represent districts encompassing some 10 million constituents each, plus the state controller — supervising property taxes and the Alcoholic Beverage Tax and Tax on Insurers programs.
—Kaitlyn Schallhorn, Oc Register, 18 May 2026
Other electrical hardware includes a 3,600-W inverter, EcoFlow power hub with solar controller and tablet-size energy management system with touchscreen interface.
—C.c. Weiss
may 17, New Atlas, 17 May 2026
Sensor system controller interfaces directly to the space The sensor system controller interfaces directly to the space vehicle to receive commands and provide telemetry data for the mission.
—Prabhat Ranjan Mishra, Interesting Engineering, 17 May 2026
See All Example Sentences for controller
Cite this Entry
“Controller.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/controller. Accessed 20 May. 2026.
Copy CitationKids Definition
controller
noun
con·trol·ler
kən-ˈtrō-lər
ˈkän-ˌtrō-lər
ˈkän-ˌtrō-lər
1
: the chief accounting officer of a business or institution
2
: a person who controls
an air traffic controller
Legal Definition
controller
noun
con·trol·ler
kən-ˈtrō-lər, ˈkän-ˌtrō-
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