controller Definition

  • 1a person or thing that directs or regulates something, especially a mechanical device that regulates the operation of a system
  • 2an official who audits and oversees financial accounts

Using controller: Examples

Take a moment to familiarize yourself with how "controller" can be used in various situations through the following examples!

  • Example

    The controller regulates the temperature of the room.

  • Example

    The air traffic controller directed the planes to their respective runways.

  • Example

    The financial controller is responsible for overseeing the company's accounts.

  • Example

    The game controller allows you to play video games on your console.

controller Synonyms and Antonyms

Antonyms for controller

Idioms Using controller

  • unable to be managed or restrained


    The car spun out of control and crashed into a tree.

  • managed or restrained


    The fire is now under control thanks to the firefighters' efforts.

  • assume command or authority over something


    She decided to take control of the situation and make sure everything went smoothly.

Phrases with controller

  • methods used to prevent pregnancy


    She decided to use birth control to avoid getting pregnant.

  • a device used to operate electronic devices from a distance


    He lost the remote control for the TV and had to get up to change the channel.

  • a person who feels compelled to control everything around them


    She's such a control freak that she can't stand it when things don't go according to plan.

Origins of controller

from Old French 'contreroller', meaning 'to check, regulate'


Summary: controller in Brief

A 'controller' [kənˈtroʊlər] is a person or thing that directs or regulates something, such as a mechanical device or financial accounts. Examples include the air traffic controller who directs planes, the game controller used to play video games, and the financial controller who oversees accounts. Phrases like 'birth control' and 'remote control' extend the term's usage, while idioms like 'out of control' and 'take control' describe situations where something is unmanageable or requires intervention.

How do native speakers use this expression?