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

Hauling assist is provided by a 750-W motor mounted in the middle of the rear triangles, which peaks at 1,400 watts – with a responsive torque sensor onboard to help with a smooth take-off. —Paul Ridden may 11, New Atlas, 11 May 2025

The devices provide up to 800 watts, enough to charge a laptop or power a small fridge. —Akielly Hu, Wired News, 3 May 2025

The ports, which face downward in a recess in the back of the monitor, include one upstream USB-C port—which supports DisplayPort Over USB Alternate Mode and up to 65 watts of power delivery—one DisplayPort 1.4 connector, an HDMI 2.0 port, and two USB-A ports. —PC Magazine, 1 May 2025

The output capacity is measured in watts, and the difference between generators is based on size. —Bestreviews, Mercury News, 22 Apr. 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