/ ˈjuːnɪvɜːs; NAmE -vɜːrs/ noun
1.
the universe [ sing. ] the whole of space and everything in it, including the earth, the planets and the stars :
theories of how the universe began
2.
[ C ] a system of stars, planets, etc. in space outside our own :
The idea of a parallel universe is hard to grasp.
He lives in a little universe of his own.
3.
[ sing. ] a set of experiences of a particular type :
the moral universe
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WORD ORIGIN
late Middle English : from Old French univers or Latin universum , neuter of universus combined into one, whole, from uni- one + versus turned (past participle of vertere ).