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Definition of kilowatt

kilowatt

/ˈkɪləwɑːt/
kil · o · watt
Plural:kilowatts
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kilowatt Lexical Profile

kilowatt Game Scores & Validity

• noun

1

A unit of electrical or mechanical power equal to one thousand watts.

Example

"The rooftop solar array generates up to eight kilowatts of electricity on a clear summer afternoon."

Word Nuance & Usage

Do not confuse a kilowatt (kW), which measures the instantaneous rate of power consumption or generation, with a kilowatt-hour (kWh), which measures the total amount of energy used over time.

• Nearby Words

kilojoule
kiloliter
kilometer
kilowatt
kilt
kilted
kilter

Word Origin & Etymology

Coined in the late 19th century from the metric prefix kilo- (from Ancient Greek khilioi, meaning 'a thousand') and watt, named in honor of the Scottish engineer James Watt.

Cite this Entry

Wordmom. (2026). Definition of Kilowatt. In Wordmom Dictionary. Retrieved Nov 1, 2026, from https://wordmom.com/dictionary/kilowatt
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