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

Remember to detach the controller cord before tossing it in the washing machine. —Ali Faccenda, People.com, 28 Dec. 2024

After a tense period without contact, mission controllers at the Johns Hopkins Applied Physics Laboratory (APL) received a reassuring beacon tone late on December 26, confirming Parker's health and operational status. —David Faris, Newsweek, 27 Dec. 2024

This one is armed with a 500W hub-motor (1000W peak) with 55nm of torque, coupled with a 20 amp controller. —Scott Kramer, Forbes, 24 Dec. 2024

Modernization of air traffic control and hiring more controllers should be the next FAA administrator’s priority, Delta Air Lines CEO Ed Bastian told CNBC earlier this week. —Leslie Josephs, CNBC, 20 Dec. 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