noun (n)

• 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(noun.quantity)

  Synonym:
  w
  

  source: wordnet30
• Scottish engineer and inventor whose improvements in the steam engine led to its wide use in industry (1736-1819)(noun.person)

  Synonym:
  james watt
  

  source: wordnet30
• A unit of power or activity equal to 10⁷ C.G.S. units of power, or to work done at the rate of one joule a second. An English horse power is approximately equal to 746 watts.(noun)

  source: webster1913