(noun) binary compound that occurs at room temperature 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
(noun) a liquid necessary for the life of most animals and plants
(noun) a United States youth subculture of the 1950s; rejected possessions or regular work or traditional dress ; for communal living and psychedelic drugs and anarchism; favored modern forms of jazz (e.g., bebop)