verb
noun
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a device that can be connected by means of a plug
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computing a module or piece of software that can be added to a system to provide extra functions or features, esp software that enhances the capabilities of a web browser
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computing ( as modifier )
plug-in memory cards
Other Word Forms
Noun Inflected Forms
Etymology
Origin of plug-in
First recorded in 1920–25; adjective and noun use of verb phrase plug in
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
An escalation in European Union trade barriers could pose some risks, as the bloc plans to extend tariff hikes to imports of Chinese plug-in hybrids, they say.
From The Wall Street Journal ● Jul. 10, 2026
Ian Plummer, chief customer officer of car selling website Autotrader, says the rising EV demand is "driven by intensifying competition and rising consumer interest in plug-in cars".
From BBC ● Jul. 8, 2026
Fully-electric cars comprised 23% of all cars sold and plug-in hybrid models accounted for 25%.
From The Wall Street Journal ● Jun. 3, 2026
The Nasdaq-listed company has been struggling with slowing demand for the plug-in hybrid vehicles it specializes in.
From The Wall Street Journal ● May 28, 2026
I dug up Radar’s e-mail about his Omnictionary program and downloaded the plug-in.
From "Paper Towns" by John Green
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It’s coming at a time when electricity demand is rising, in large part because of the artificial-intelligence race and the need to plug in more data centers.
From The Wall Street Journal ● Jun. 25, 2026
Although the vehicles may be capable of driving themselves, they can’t clean their own interiors, plug in a charging cable or repair hardware.
From MarketWatch ● Apr. 30, 2026
To game that out, Klosterman said you could invent and plug in a weather forecast with higher temperatures.
From Los Angeles Times ● Mar. 26, 2026
Miliband's focus today is on plug in solar panels, which he says will be available to buy in the UK later this year.
From BBC ● Mar. 23, 2026
Leo doubted the poor guy could pop a spark plug in the shape he was in.
From "The Mark of Athena" by Rick Riordan
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China’s exports of EVs more than doubled in March from a year earlier as rising fuel prices boosted the appeal of plug-ins.
From The Wall Street Journal ● Apr. 12, 2026
In their view, “legal plug-ins will not replace robust, mature tool stacks like Intuit.”
From Barron's ● Feb. 4, 2026
The company also released plug-ins for finance, customer service and other areas.
From The Wall Street Journal ● Feb. 3, 2026
A wave of new hybrid models is coming online in 2025, both traditional hybrids and plug-ins.
From Los Angeles Times ● Jan. 15, 2025
I see that it could be possible to use the logic board from the first one, and the chipsets and plug-ins from the other two.
From "Counting by 7s" by Holly Goldberg Sloan
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.