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
con·trol·ler·ship
kən-ˈtrō-lər-ˌship
ˈkän-ˌtrō-
plural -s
1
: the office of controller
2
: the position and functions of a controller
Examples of controller in a Sentence
Noun (1)
the controllers for the video game system seem fairly well designed
Recent Examples on the Web
Noe Padilla, USA Today, 2 June 2026
Radio controllers now have real-time video access to see what’s happening inside transit vehicles and new protocols for prioritizing calls for help from buses.
—Caitlin McGlade, Charlotte Observer, 2 June 2026
The monitor has a dedicated hook that can pop out from the back of the monitor to charge a DualSense controller, too — looks super handy.
—Jay Peters, The Verge, 1 June 2026
In terms of ports, four controller ports line the front of the system, while a microSD card slot (the ModRetro 64 includes a 16GB microSD card), two USB-C ports, and an HDMI port line the back.
—Zackery Cuevas, PC Magazine, 1 June 2026
See All Example Sentences for controller
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Noun
Other California races to watch on June 2 Several other important statewide races are being held on June 2, as Californians vote for lieutenant governor, secretary of state, attorney general, treasurer, controller, insurance commissioner, and state superintendent of public instruction.
—Noe Padilla, USA Today, 2 June 2026
Radio controllers now have real-time video access to see what’s happening inside transit vehicles and new protocols for prioritizing calls for help from buses.
—Caitlin McGlade, Charlotte Observer, 2 June 2026
The monitor has a dedicated hook that can pop out from the back of the monitor to charge a DualSense controller, too — looks super handy.
—Jay Peters, The Verge, 1 June 2026
In terms of ports, four controller ports line the front of the system, while a microSD card slot (the ModRetro 64 includes a 16GB microSD card), two USB-C ports, and an HDMI port line the back.
—Zackery Cuevas, PC Magazine, 1 June 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 9 Jun. 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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