Noun watt has 2 senses
  1. watt, W - a unit of power equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a resistance of 1 ohm
    --1 is a kind of power unit
    --1 is a part of kilowatt, kW; horsepower, HP, H.P.
    --1 has parts: milliwatt
  2. Watt, James Watt - Scottish engineer and inventor whose improvements in the steam engine led to its wide use in industry (1736-1819)
    --2 is a kind of engineer, applied scientist, technologist; inventor, discoverer, artificer
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