Princeton's WordNet

1. tungsten, wolfram, W, atomic number 74(noun)

   a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite

   Synonyms:
   west, wolfram, due west, atomic number 74, double-u, watt, westward, tungsten

2. west, due west, westward, W(noun)

   the cardinal compass point that is a 270 degrees

   Synonyms:
   west, wolfram, due west, atomic number 74, western United States, double-u, watt, westward, tungsten

3. watt, W(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

   Synonyms:
   west, wolfram, due west, atomic number 74, double-u, watt, westward, tungsten

4. W, w, double-u(noun)

   the 23rd letter of the Roman alphabet

   Synonyms:
   west, wolfram, due west, atomic number 74, double-u, watt, westward, tungsten, w