Definitions of Watt:

• noun:   Scottish engineer and inventor whose improvements in the steam engine led to its wide use in industry (1736-1819)
• noun:   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
• name:  A surname (common: 1 in 16666 families; popularity rank in the U.S.: #2155)