1. (noun)water, H2O binarycompound that occurs at roomtemperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
2. (noun)body of water, water the part of the earth's surface covered with water (such as a river or lake or ocean)
"they invaded our territorial waters"; "they were sitting by the water's edge"
4. (noun)water system, water supply, water 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"
5. (noun)urine, piss, pee, piddle, weewee, water liquid excretory product "there was blood in his urine"; "the child had to make water"
6. (noun)water a liquidnecessary for the life of most animals and plants
"he asked for a drink of water"
7. (verb)water, irrigate supply with water, as with channels or ditches or streams
"Water the fields"
8. (verb)water provide with water "We watered the buffalo"
9. (verb)water secrete or form water, as tears or saliva "My mouth watered at the prospect of a good dinner"; "His eyes watered"
10. (verb)water fill with tears "His eyes were watering"