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Noun powerhouse has 3 senses
powerhouse, human dynamo, ball of fire, fireball - a highly energetic and indefatigable person--1 is a kind of actor, doer, worker
 --1 has particulars: self-starter
 
powerhouse - a team considered to be the best of its class--2 is a kind of team, squad
 
 power station, power plant, powerhouse - an electrical generating station--3 is a kind of station
 --3 is a part of power system, power grid, grid
 --3 has parts: busbar, bus; turbogenerator
 --3 has particulars: wind farm, wind park, wind energy facility
 
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