Wafer
Waiver of immunity
WAN
Wander
Waste coal
Water
Water table
Waterfowl
Watershed hydrology
Watt
Wave
Waveguide
Wavelength
Weaning
Weather
Weathering
Wellhead
Whey
White blood cell
White chocolate
White noise
WHO
Wide area network
Wide area telephone service
Wide screen
Wild rag
WiMAX
Wind
Wind chill
Wind shear
Window mat
Windrow
Wine
Witt-Cameron standard
Womb
Wood wool
Worm
Wrights stain