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 160-watt output places the supply below the power levels required by larger vehicle or platform systems. — Aamir Khollam, Interesting Engineering, 25 Sep. 2026

This discount gives creative pros, developers, and power users a chance to snag incredible performance per watt and doubled storage without paying the standard retail price. — Juhi Wadia, PC Magazine, 22 Sep. 2026

At the other end of the spectrum, the American e2T from Renewables is a two-wheel electric tractor for small farms with a 5-kWh battery, starting around $7,500 (plus $1,900 for an optional 550-watt solar canopy). — New Atlas, 17 Sep. 2026

An attendee at the launch reported that those ports can deliver up to 90 watts of power. — Kurt Knutsson, FOXNews.com, 15 Sep. 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