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1. Binary compound that occurs at room temperature as a clear colourless odourless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
   - H2O
    
2. The part of the earth's surface covered with water (such as a river, lake or ocean)
   "they invaded our territorial waters"; "they were sitting by the water's edge"; "they invaded our territorial bodies of water";
   - body of water
    
3. A facility that provides a source of water
   "the town debated the purification of the water supply"; "first you have to cut off the water"; "the town debated the purification of the water system";
   - water system, water supply
    
4. Liquid excretory product
   "the child had to make water";
   - urine, pee [informal], piddle [informal], weewee [informal], widdle [Brit, informal]
    
5. A liquid necessary for the life of most animals and plants
   "he asked for a drink of water"
    
6. [archaic] Once thought to be one of four elements composing the universe (Empedocles), associated with the humour phlegm

1. Supply with water, as with channels, ditches or streams
   "Water the fields";
   - irrigate
    
2. Provide with water
   "We watered the buffalo"
    
3. Secrete or form water, as tears or saliva
   "My mouth watered at the prospect of a good dinner"; "His eyes watered"
    
4. Fill with tears
   "His eyes were watering"

Derived forms: watered, waters, watering

Type of: binary compound, body waste, element, excrement, excreta, excretion, excretory product, facility, fill, fill up, food, furnish, installation, liquid, nutrient, offer, provide, release, render, secrete, supply, thing, wet

Part of: base, diamond dust, Earth's surface, flake, frost mist, frost snow, hydrosphere, ice, ice crystal, ice needle, infrastructure, perspiration, poudrin, snow mist, snowflake, sudor [technical], surface, sweat, tear[2], teardrop, water ice

Encyclopedia: Water, electricity, and gas