universe

noun

All space-time, matter, and energy, including the solar system, all stars and galaxies, and the contents of intergalactic space, regarded as a whole.

A hypothetical whole of space-time, matter, and energy that is purported to exist simultaneously with but to be different from this universe.

A model or conception of the earth and everything else that exists.

The human race or a subset of it.

A sphere of interest, activity, or understanding.