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Definition of gigawatt

gigawatt

/ˈɡɪɡ.ə.wɑːt/
gig · a · watt
Plural:gigawatts
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gigawatt Lexical Profile

gigawatt Game Scores & Validity

• noun

1

A unit of electrical or mechanical power equal to one billion (10^9) watts or one thousand megawatts, commonly used to measure the output capacity of large power plants or electrical grids.

Example

"The new offshore wind farm is expected to generate over two gigawatts of clean energy for the region."

• Nearby Words

gigantic
gigantically
gigantism
gigawatt
giggle
giggler
giggly

Word Origin & Etymology

Coined in the 20th century by combining the SI prefix 'giga-' (from Ancient Greek 'gigas', meaning 'giant') with 'watt', named after the Scottish engineer James Watt (1736–1819).

Cite this Entry

Wordmom. (2026). Definition of Gigawatt. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/gigawatt
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