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powerhouse

American  
[pou-er-hous] / ˈpaʊ ərˌhaʊs /

noun

plural

powerhouses
  1. Electricity. a generating station.

  2. a person, group, team, or the like, having great energy, strength, or potential for success.


powerhouse British  
/ ˈpaʊəˌhaʊs /

noun

  1. an electrical generating station or plant

  2. informal a forceful or powerful person or thing

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What does powerhouse mean? A powerhouse is a powerful, forceful, or dominant person, group, or thing. In a literal sense, a powerhouse is a station or plant that generates electricity. Although it can still be used this way, terms like power plant and power station are much more common. Powerhouse is far more commonly used in the figurative way, especially in context of sports and business. Example: Because they always win, they can always recruit the best players, which makes them a perennial powerhouse in the conference.

Etymology

Origin of powerhouse

First recorded in 1880–85; power + house

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The plot still cries out for a flow chart, but the powerhouse fusion of Michele, Tveit and Christopher, overcoming all obstacles, has made this production one of the seismic events of the Broadway season.

From Los Angeles Times • Apr. 22, 2026

A splurge in public spending by Chancellor Friedrich Merz's government was expected to kickstart a turnaround for the manufacturing powerhouse this year after several years in the doldrums.

From Barron's • Apr. 21, 2026

China in recent decades has grown into a shipbuilding powerhouse, churning out hundreds of vessels a year, often in dual-use shipyards that can build military and nonmilitary ships.

From The Wall Street Journal • Apr. 10, 2026

As BTS takes to the stage again, and returns to Weverse, their fandom and their powerhouse performances will determine the verdict on their comeback.

From BBC • Apr. 8, 2026

As she became better and better at the job, she became an intelligence powerhouse, able to advise the Coast Guard and other agencies on everything from potential dangers to easy targets.

From "The Woman All Spies Fear" by Amy Butler Greenfield