Universe
Definition 1 of 5
Pro Tip 1/3
All-Inclusive
Refers to everything that exists, with no exceptions. The universe encompasses all matter and energy.
Pro Tip 2/3
Not Interchangeable
'Universe' and 'galaxy' are not the same; a galaxy is part of the universe. The Milky Way is just one of billions of galaxies in the universe.
Pro Tip 3/3
Scientific Context
Often used in discussions about physics, astronomy, and cosmology. The universe is expanding at an accelerating rate.