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megawatt

American

[meg-uh-wot] / ˈmɛg əˌwɒt /

noun

Electricity.

a unit of power, equal to one million watts. MW

megawatt British

/ ˈmɛɡəˌwɒt /

noun

MW. one million watts

"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

megawatt Cultural

A unit of power: one million watts. A typical large electrical generating plant can produce a thousand megawatts of electricity.

Etymology

Origin of megawatt

First recorded in 1895–1900; mega- + watt

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:

megawatt

Rivan says the cost of the methane it is making at that site is below benchmark natural-gas prices in Europe, which currently sit around 90 euros, or roughly $100, a megawatt hour.

From The Wall Street Journal ● Oct. 25, 2026

Microsoft expects it to deliver 40% more tokens — pieces of information that AI models process and generate — per megawatt than leading systems based on graphics processing units.

From MarketWatch ● Oct. 16, 2026

ESS Tech is working with Alsym, another US firm that is planning to ship "hundreds" of megawatt hours' worth of sodium ion batteries – made in the US – by 2027.

From BBC ● Sep. 29, 2026

Parton, never dropping her megawatt smile, replied, “If you had’ve, it would have been something very natural. But I would have probably kicked your shins or something.”

From Salon ● Aug. 26, 2026

And then that megawatt smile that belonged on cereal boxes across the nation reappeared.

From "Beauty Queens" by Libba Bray

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