DictionaryuniverseAll space and matter
noun

universe

YOO-nih-vers/ˈjuːnɪvɜːrs/

All that exists within space or a particular realm.

Stars, planets, and galaxies fill the vast space of the universe.

A sweep of stars, galaxies and nebulae with planets in foreground, immense cosmic space.
Etymology

“Turned into one” became “all things” understood as a single whole. Universe names that totality: everything that exists, considered together rather than as separate things.

In context

History of the Universe0:30
by measuring this deceleration all the matter and energy that make up the universe would be revealed
Where Did Dark Matter And Dark Energy Come From?

More examples

  • Scientists study how the universe expands.
  • The two novels take place in different fictional universes.
  • Her garden is a tiny universe of insects and plants.

Forms

universe · universes

universal adjective — Relating to everyone or everything.

Similar words

cosmos
Refers to the physical universe, not a smaller conceptual realm.
world
Can mean Earth or a particular sphere of life.