controller

noun

con·​trol·​ler kən-ˈtrō-lər  ˈkän-ˌtrō- 

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 

ˈkän-ˌtrō-

noun

Synonyms

• control
• regulator

Examples of controller in a Sentence

the controllers for the video game system seem fairly well designed

Recent Examples on the Web

This is because diving, sliding, crouching, and prone are all attached to the same button on a controller. —Cade Onder, Rolling Stone, 1 Nov. 2024

The ebike lacks the kind of multi-function display found mounted to the handlebars of many competitors, but there is a controller installed on the top bar to select assistance level, activate the lights and turn on Bluetooth for connectivity to Mahle's MySmartBike app. —Paul Ridden, New Atlas, 29 Oct. 2024

The flagship upgrade inside is the shorter, almost bare dash with its curved digital infotainment screen, though BMW thankfully keeps its iDrive controller in the center console. —Michael Taylor, Forbes, 15 Oct. 2024

There's also an input for an IR controller and a USB port for service. —PCMAG, 28 Oct. 2024

Word History

Etymology

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

First Known Use

15th century, in the meaning defined at sense 1a

Phrases Containing controller

• air traffic controller
• forward air controller

Kids Definition

controller

noun

con·​trol·​ler kən-ˈtrō-lər  ˈkän-ˌtrō-lər 

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

controller

noun

con·​trol·​ler kən-ˈtrō-lər, ˈkän-ˌtrō- 

: comptroller