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

Equipped with a 50-watt racetrack subwoofer and dual 15-watt tweeters, the audio feels simultaneously powerful and clear. —George Yang, PC Magazine, 13 Mar. 2026

The company said in a press release that its standalone CPUs deliver significant performance-per-watt improvements in Meta’s data centers. —Katie Tarasov, CNBC, 13 Mar. 2026

Perhaps most interestingly, the YouTuber was able to charge his entire system using a USB-C adapter connected to a 138-watt laptop charger. —Mack Degeurin, Popular Science, 11 Mar. 2026

Of course, not everyone needs a 10,000-watt flying machine. —Omar Kardoudi march 11, New Atlas, 11 Mar. 2026

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