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

The system has 2,000 watts of power, was built and configured specifically for the Batur and sets buyers back over $30,000. —Alistair Charlton, Forbes, 11 Mar. 2025

Each spacecraft’s plutonium core produces a little less juice each year, however—annually losing about four watts, equivalent to a low-power light bulb. —Meghan Bartels, Scientific American, 6 Mar. 2025

Linking two panels together for 400 watts of charging power will cut your solar charging time in half. —PCMAG, 6 Mar. 2025

Some hand blenders offer just 100 watts of power, while others have up to 800 watts. —Bestreviews, The Mercury News, 21 Feb. 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