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power up

British

verb

(tr, adverb) to switch on the power to (a computer system)
to begin to make good use of or take full advantage of

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

Now those plans are on hold as her budget is eaten up buying petrol to power up generators to run her sewing machines after fuel prices jumped about 20 percent in Africa's most populous country.

From Barron's • Mar. 20, 2026

The Berwick Bank wind farm in the outer Firth of Forth will contain up to 307 turbines generating enough electricity to power up to six million homes.

From BBC • Jan. 14, 2026

CoreWeave Chief Executive Michael Intrator shared in a Bloomberg interview last month that the company had secured 2.8 gigawatts of contracted power, up 600 megawatts from the second quarter.

From MarketWatch • Nov. 9, 2025

But their modular nature means they become cost competitive if they are used off-grid for data centers that need power up nearly 100% of the time.

From The Wall Street Journal • Nov. 5, 2025

My husband's career had allowed me to witness the machinations of politics and power up close.

From "Becoming" by Michelle Obama

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023