controller

C2+ Topic:People & Society

US /kənˈtroʊlɚ/ UK /kənˈtrəʊlə/ See IPA manual

Homophones

comptroller /kənˈtroʊlɚ/

noun

Meanings

1

noun
a person or device that directs or regulates something

The flight controller guided the plane safely to the runway.

Thesaurus

Synonyms

1 noun · a person or device that... regulator governor director manager comptroller supervisorhandler

Word family

Derived forms controllership

Related forms control controllable comptroller

Etymology

From the verb control (from Anglo-French contreroller 'to keep a counter-roll', from Medieval Latin contrarotulus, from contra 'against' + rotulus 'roll') plus the agentive suffix -er.

contrarotulus Latin rotulus la-med

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Topics

People & Society Word Formation & Derivatives

# controller

**Type:** Word
**Level:** C2+
**Part of speech:** noun
**IPA (US):** kənˈtroʊlɚ
**IPA (UK):** kənˈtrəʊlə

## Meanings
1. a person or device that directs or regulates something

## Examples
- The flight controller guided the plane safely to the runway.

## Synonyms
- regulator
- governor
- director
- manager
- comptroller
- supervisor
- handler

## Derived Forms
- controllership

## Related Forms
- control
- controllable
- comptroller

## Roots and Affixes
- Root: contrarotulus
- Root: rotulus

## Etymology
From the verb control (from Anglo-French contreroller 'to keep a counter-roll', from Medieval Latin contrarotulus, from contra 'against' + rotulus 'roll') plus the agentive suffix -er.

## AI Etymology
Controller is from the verb control (from Anglo-French contreroller 'to keep a counter-roll', from Medieval Latin contrarotulus, from contra 'against' + rotulus 'roll') plus the agentive suffix -er. In present-day use, it means a person or device that directs or regulates something. Derived formations include controllership. Related vocabulary includes control, controllable, and comptroller.

## Topics
- People & Society
- Word Formation & Derivatives

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controller

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