: the absolute meter-kilogram-second unit of power equal to the work done at the rate of one joule per second or to the power produced by a current of one ampere across a potential difference of one volt : 1/746 horsepower
Examples of watt in a Sentence
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Each generational transition has accompanied meaningful gains in core count, memory bandwidth, and performance-per-watt.
—
Aditya Jadhav, Interesting Engineering, 22 May 2026
At the top of the line, the Volvo EX60 P10 Ultra includes a stunning 28-speaker Bowers & Wilkins blasting out 1820 watts of three-dimensional Dolby Atmos sound.
—Kristin Shaw, ArsTechnica, 20 May 2026
This wastebasket-size 600-watt box generated power for just 43 days before a voltage regulator broke.
—Robin George Andrews, Scientific American, 19 May 2026
Those batteries charge off-grid via 800 watts of rooftop solar (expandable to 1,200 W) and an auxiliary 6,500-W alternator, keeping the 48-V electrical system live and ready for the full two weeks, with that running A/C will drive the battery reserves down much quicker.
—C.c. Weiss
may 17, New Atlas, 17 May 2026
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Aditya Jadhav, Interesting Engineering, 22 May 2026
At the top of the line, the Volvo EX60 P10 Ultra includes a stunning 28-speaker Bowers & Wilkins blasting out 1820 watts of three-dimensional Dolby Atmos sound.
—Kristin Shaw, ArsTechnica, 20 May 2026
This wastebasket-size 600-watt box generated power for just 43 days before a voltage regulator broke.
—Robin George Andrews, Scientific American, 19 May 2026
Those batteries charge off-grid via 800 watts of rooftop solar (expandable to 1,200 W) and an auxiliary 6,500-W alternator, keeping the 48-V electrical system live and ready for the full two weeks, with that running A/C will drive the battery reserves down much quicker.
—C.c. Weiss
may 17, New Atlas, 17 May 2026
See All Example Sentences for watt
Cite this Entry
“Watt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/watt. Accessed 25 May. 2026.
Copy CitationKids Definition
watt
noun
: a unit of power equal to the work done at the rate of one joule per second
Etymology
named for James Watt 1736–1819 Scottish engineer
Medical Definition
watt
noun
: the absolute mks unit of power equal to the work done at the rate of one joule per second or to the power produced by a current of one ampere across a potential difference of one volt : ¹/₇₄₆ horsepower
Biographical Definition
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