definition of
universe

[1] #1 universe n. [existence, creation, world, cosmos, macrocosm] everything that exists anywhere; "they study the evolution of the universe"; "the biggest tree in existence". wn

[2] #2 universe n. [population] (statistics) the entire aggregation of items from which samples can be drawn; "it is an estimate of the mean of the population". wn

[3] #3 universe n. [universe of discourse] everything stated or assumed in a given discussion. wn