control

A2 Topic:Science & Research

Also spelled controul

US /kənˈtɹoʊl/ UK /kənˈtɹəʊl/ See IPA manual

noun verb Freq #598

Meanings

1

noun
The power to direct, manage, or make decisions about something.

The police kept the crowd under control.
2

verb
To direct or manage how something behaves or happens.

A thermostat controls the temperature in the room.
3

noun
A switch, button, or device that operates a machine.

The speed control on the turntable was broken.
4

noun
A standard used for comparison in a scientific experiment.

The control group received no medicine at all.

Thesaurus

Synonyms

1 noun · the power to direct,... command authority

2 verb · to direct or manage how... manage regulate direct

3 noun · a switch, button, or device... controller switch

4 noun · a standard used for... control condition

Opposites

defy obey rebel resist submit

Word family

Forms controledcontrolingcontrolledcontrollingcontrols

Derived forms aaccaacoaadccsabacabcabcaabcccacacaaccacchace

Related forms regulate

Common collocations

Etymology

From Middle English controllen, from Old French contrerole, from Medieval Latin contrārotulus (“a counter-roll or register used to verify accounts”), from Latin contrā (“against, opposite”) + Medieval Latin rotulus, Latin rotula (“roll, a little wheel”), diminutive of rota (“a wheel”). Partly displaced native Old English wealdan and Old English wieldan, whence their merged reflex English wield.

controllen Middle English contrerole Old French contrārotulus la-med contrā Latin rotulus la-med rotula Latin

View etymology graph ->

Topics

Science & Research Tools, Machines & Construction

# control

**Type:** Word
**Level:** A2
**Part of speech:** noun, verb
**IPA (US):** kənˈtɹoʊl
**IPA (UK):** kənˈtɹəʊl
**Frequency rank:** 598

## Meanings
1. The power to direct, manage, or make decisions about something.
2. To direct or manage how something behaves or happens.
3. A switch, button, or device that operates a machine.
4. A standard used for comparison in a scientific experiment.

## Examples
- The police kept the crowd under control.
- A thermostat controls the temperature in the room.
- The speed control on the turntable was broken.
- The control group received no medicine at all.

## Antonyms
- defy
- obey
- rebel
- resist
- submit

## Derived Forms
- aacc
- aaco
- aadccs
- abac
- abc
- abca
- abccc
- ac
- aca
- acc
- acch
- ace

## Related Forms
- regulate

## Roots and Affixes
- Root: controllen
- Root: contrerole
- Root: contrārotulus
- Root: contrā
- Root: rotulus
- Root: rotula

## Etymology
From Middle English controllen, from Old French contrerole, from Medieval Latin contrārotulus (“a counter-roll or register used to verify accounts”), from Latin contrā (“against, opposite”) + Medieval Latin rotulus, Latin rotula (“roll, a little wheel”), diminutive of rota (“a wheel”). Partly displaced native Old English wealdan and Old English wieldan, whence their merged reflex English wield.

## AI Etymology
control is a noun and verb. It is from Middle English controllen, from Old French contrerole, from Medieval Latin contrārotulus (“a counter-roll or register used to verify accounts”), from Latin contrā (“against, opposite”) + Medieval Latin rotulus, Latin rotula (“roll, a little wheel”), diminutive of rota (“a wheel”). Partly displaced native Old English wealdan and Old English wieldan, whence their merged reflex English wield. Historical forms in the chain include controllen (Middle English), contrerole (Old French), contrārotulus (Medieval Latin), contrā (Latin), rotulus (Medieval Latin), and rotula (Latin). Current senses include the power to direct, manage, or make decisions about something, to direct or manage how something behaves or happens, and a switch, button, or device that operates a machine. Derived forms include aacc, aaco, aadccs, abac, and abc. Related words include regulate.

## Topics
- Science & Research
- Tools, Machines & Construction

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control

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