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
Scientists have identified a protein that acts as a kind of traffic controller for fat inside cells, revealing a mechanism that could help explain how the body regulates energy storage and why things go wrong in metabolic disease.
—
New Atlas, 28 Aug. 2025
In July, the U.S. Air Force said the B-52 crew was not warned about the nearby airliner, with the FAA and private controllers at Minot International Airport reportedly giving the all-clear, according to reporting by The Associated Press.
—Gabrielle Rockson, People.com, 28 Aug. 2025
During Wednesday evening's outage, pilots reported that controller call signs were cutting out entirely, according to air traffic recordings obtained by LiveATC.net.
—Doc Louallen, ABC News, 28 Aug. 2025
On the right side of the handlebars is a controller with plus and minus buttons for changing gears and a button that turns the power on and off.
—PC Magazine, 27 Aug. 2025
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New Atlas, 28 Aug. 2025
In July, the U.S. Air Force said the B-52 crew was not warned about the nearby airliner, with the FAA and private controllers at Minot International Airport reportedly giving the all-clear, according to reporting by The Associated Press.
—Gabrielle Rockson, People.com, 28 Aug. 2025
During Wednesday evening's outage, pilots reported that controller call signs were cutting out entirely, according to air traffic recordings obtained by LiveATC.net.
—Doc Louallen, ABC News, 28 Aug. 2025
On the right side of the handlebars is a controller with plus and minus buttons for changing gears and a button that turns the power on and off.
—PC Magazine, 27 Aug. 2025
See All Example Sentences for controller
Cite this Entry
“Controller.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/controller. Accessed 4 Sep. 2025.
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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