watt

noun

ˈwät 

: 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

Recent Examples on the Web

Inspired by the differential between watts consumed by LLMs and the human or animal brain, the new group will also explore ways to look more closely at the similarities between biological brains and artificial neural networks. —Adrian Bridgwater, Forbes.com, 10 Apr. 2025

Most space heaters use 1,500 watts, the highest amount approved for consistent usage on 15-amp circuits. —Matthew Korfhage, WIRED, 24 Mar. 2025

Even before the day began, the car was already generating 300 watts of solar energy. —Nicole Hoey, Robb Report, 1 Apr. 2025

Razer had to shave off an extra 15 watts of total graphics power (TGP) to get it this tiny, meaning this laptop isn't the best showcase for the 5090's maximum performance. —Luke Larsen, Wired News, 27 Mar. 2025

Word History

Etymology

James Watt †1819

First Known Use

1882, in the meaning defined above

Phrases Containing watt

• watt-hour

Rhymes for watt

• aught
• baht
• blot
• bott
• bought
• brought
• caught
• clot
• cot
• cott
• dot
• fought

Kids Definition

watt

noun

ˈwät 

: 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

ˈwät 

: 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

Watt

biographical name

ˈwät 

James 1736–1819 Scottish inventor