shutoff

1 of 2

noun

shut·​off ˈshət-ˌȯf How to pronounce shutoff (audio)
Synonyms of shutoffnext
1
: something (such as a valve) that shuts off
2

shut off

2 of 2

verb

shut off; shutting off; shuts off

transitive verb

1
: to close off : separate
usually used with from
shut off from the rest of the world
2
a
: to cut off (a flow or passage) : stop
shuts off the oxygen supply
b
: to stop the operation of (something, such as a machine)
shut the motor off

intransitive verb

: to cease operating : stop
shuts off automatically

Examples of shutoff in a Sentence

Noun the utility company threatened them with the shutoff of electricity if the bills weren't paid Verb threatened to shut off peace talks if the other side kept making unreasonable demands shut off the computer to save electricity
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
At the same time, 674 Bay Area customers still were without power Monday afternoon because of a public safety power shutoff by PG&E, which cited safety concerns amid conditions that can cause fires. Rick Hurd, Mercury News, 18 May 2026 The site also includes a seven-day forecast, outage maps, preparation tips and information about community resource centers that PG&E opens during shutoffs. Sacbee.com, 16 May 2026
Verb
Smart power strips can help reduce energy waste by automatically shutting off devices not in use. Jessica Safavimehr, Southern Living, 28 May 2026 The crew will shut off all gas lines, electrical circuits and breaker switches connected to the equipment. Nick Perry, USA Today, 28 May 2026 See All Example Sentences for shutoff

Word History

First Known Use

Noun

1847, in the meaning defined at sense 1

Verb

1818, in the meaning defined at transitive sense 1

Time Traveler
The first known use of shutoff was in 1818

Browse Nearby Words

See all Nearby Words

Cite this Entry

“Shutoff.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/shutoff. Accessed 30 May. 2026.

Kids Definition

shutoff

1 of 2 noun
shut·​off ˈshət-ˌȯf How to pronounce shutoff (audio)
1
: something that shuts off
2
: an instance of shutting off : interruption, stoppage

shut off

2 of 2 verb
ˌshət-ˈȯf
1
: to stop the flow of
shut off the water
2
a
: to stop the operation of
shut the motor off
b
: to cease operating
the light shuts off automatically
3
: to make or keep separate
shut off from the rest of the world
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