controller
A2Pronunciation
UK
- /kəntrˈəʊlə/
US
- /kənˈtroʊlər/
Meanings
Noun
a person whose job or role is to direct, regulate, or monitor an activity, process, or organization
a handheld or other device used to operate a machine, game, or electronic system
a hardware or software component that manages another device, process, or part of a system
More meaningsFewer meanings
a senior finance officer responsible for accounting and financial reporting
Beyond the definition
A controller isn't always a person! It can be someone in charge—like an air traffic controller guiding planes safely through the sky. But it can also be a device, like the game controller you hold to play video games, or a thermostat that regulates the temperature in your house. Think of anything that directs or manages a system; that's likely a controller at work. In the corporate world, a "Controller" is a specific high-level role that oversees a company's accounting and finances. The key idea across all uses is influence, direction, and regulation.
The word "controller" refers to someone or something that has power over, directs, or manages something else. It is a versatile term with meanings spanning from professional human roles to mechanical and electronic devices.
Think of an air traffic controller: they are responsible for the safe and efficient movement of aircraft, making critical decisions to prevent collisions and maintain order. This is a primary example of a person acting as a controller. On the technical side, consider a dimmer switch; it is a device that controls the brightness of a light. In computing, a microcontroller is a small circuit designed to govern a specific operation in an embedded system, like the timer in a microwave.
In the business world, a "Controller" is a high-level accounting professional responsible for overseeing financial reporting and ensuring the accuracy of a company's records. (A related spelling, "Comptroller," is especially common for government roles.) While a project manager may be said to control tasks and timelines, the formal title usually belongs to the finance department.
The concept of control is central to this word. A controller establishes rules, monitors progress, and makes adjustments to achieve a desired outcome. It implies authority, responsibility, and the ability to influence events or mechanical systems. Whether it is a person guiding planes, a handheld device for a console, or an accountant managing the books, a controller is anything that exerts direction and maintains order within a system.
Examples
- 1
Game device
My little brother dropped the game controller and broke one of the buttons.
- 2
Drone device
This drone comes with a controller that fits easily in one hand.
- 3
Heating system
The heating controller turns the system off automatically at night.
- 4
Air traffic
She works as an air traffic controller at the airport.
More examplesFewer examples
- 5
Control room
Ask the controller in the control room before you restart the machine.
- 6
Finance role
After ten years in accounting, he became the company's financial controller.
- Domainfinancial controller
the person who manages a company's finances
- 7
Smart home
You can use your phone as a controller for the smart lights.
- Patternuse X as a controller for Y
use X to operate Y
See also
Similar
Shades of meaning
Contrast
- subordinate
- controlled system
Used with (collocations)
- traffic controller
- air traffic controller
- game controller
- temperature controller
Word family
Explore
- automation
- feedback loop
Forms and spellings
2 forms open this card.
Main spelling
- controllernoun
Forms
- controllerspluralnoun