: designed to be connected to an electric circuit by plugging in
a plug-in toy
a plug-in circuit board
1
: something that plugs in
2
: a small piece of software that supplements a larger program (such as a browser)
plugged in; plugging in; plugs in
: to establish an electric circuit by inserting a plug
: to attach or connect to an electric receptacle (such as an outlet)
Examples of plug-in in a Sentence
Recent Examples on the Web
Bryan Hood, Robb Report, 13 Apr. 2026
The Transporter eHybrid's plug-in hybrid powertrain is more straightforward, coming in a single 229-hp spec.
—New Atlas, 12 Apr. 2026
ABC News, 11 May 2026
The hybrid drivetrain is derived from the architecture introduced with the Revuelto plug-in hybrid supercar, although the Fenomeno Roadster receives bespoke chassis and aerodynamic modifications, making heavy use of carbon fiber to reduce weight.
—James Morris, Forbes.com, 10 May 2026
See All Example Sentences for plug-in
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Adjective
This setup, which is used by the current Porsche Cayenne and upcoming Audi Q9, which can accommodate a range of combustion engines and a plug-in hybrid system.
—Bryan Hood, Robb Report, 13 Apr. 2026
The Transporter eHybrid's plug-in hybrid powertrain is more straightforward, coming in a single 229-hp spec.
—New Atlas, 12 Apr. 2026
Noun
Among them, exports of new energy passenger vehicles, including battery electric vehicles and plug-in hybrids, jumped more than 120% last month from the year before, to about 420,000 units.
—ABC News, 11 May 2026
The hybrid drivetrain is derived from the architecture introduced with the Revuelto plug-in hybrid supercar, although the Fenomeno Roadster receives bespoke chassis and aerodynamic modifications, making heavy use of carbon fiber to reduce weight.
—James Morris, Forbes.com, 10 May 2026
See All Example Sentences for plug-in
Cite this Entry
“Plug-in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plug-in. Accessed 14 May. 2026.
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