1.the condition that distinguishes organisms from inorganic objects and dead organisms, being manifested by growth through metabolism, reproduction, and the power of adaptation to environment through changes originating
2.the sum of the distinguishing phenomena of organisms, especially metabolism, growth, reproduction, and adaptation to environment.
3.the animate existence or period of animate existence of an individual: to risk one’s life; a short life and a merry one.
4.a corresponding state, existence, or principle of existence conceived of as belonging to the soul: eternal life.
5.the general or universal condition of human existence: Too bad, but life is like that.