universe

American  

[yoo-nuh-vurs] / ˈju nəˌvɜrs /

noun

universes plural

1. the universe. the totality of known or supposed objects and phenomena throughout space; the cosmos; macrocosm.

2. the whole world, especially with reference to humanity.

   a truth known throughout the universe.

3. a world or sphere in which something exists or prevails.

   his private universe.

4. in New Age philosophy and popular culture, a divine but nonpersonal being, consciousness, or field of energy believed to connect everything that is, allowing the interaction of the physical with the spiritual and thought with reality.

5. Also called universe of discourse.  Logic. the aggregate of all the objects, attributes, and relations assumed or implied in a given discussion.

6. Also called universal set.  Mathematics. the set of all elements under discussion for a given problem.

7. Statistics. the entire population under study.

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universe British  

/ ˈjuːnɪˌvɜːs /

noun

1. astronomy the aggregate of all existing matter, energy, and space

2. human beings collectively

3. a province or sphere of thought or activity

4. statistics another word for population

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universe Scientific  

/ yo̅o̅′nə-vûrs′ /

1. The totality of matter, energy, and space, including the Solar System, the galaxies, and the contents of the space between the galaxies. Current theories of cosmology suggest that the universe is constantly expanding.

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Other Word Forms

Derived Forms

• subuniverse
  noun
• superuniverse
  noun

Inflected Forms

Nouns

• universes
  plural

Etymology

Origin of universe

First recorded in 1325–75; Middle English, from Old French univers, from Latin ūniversum, noun use of neuter of ūniversus “all, entire,” literally, “turned into one,” from ūni- uni- + versus “turned” (past participle of vertere “to turn”)

Explanation

Universe is a big word — in fact, it includes all matter and all of space. We can't see or know much about the outer limits of the universe, but we know that it has them, and the idea of matter contained within boundaries gives us other meanings for the word. You might refer to a "universe of ideas," or when conducting a scientific study, create "a universe of data." Universe can also mean a defined set of something — the five blocks between the playground and home can be the whole universe for a small child.

Example Sentences

Their analysis indicates that these galaxies may account for as much as 20% of the total population of high-energy neutrinos observed across the Universe.

From Science Daily • Jun. 19, 2026

The company opened its Universal Epic Universe in Orlando last year, the first major U.S. amusement park in over two decades, and is slated to open its Universal Kids Resort in Texas in July.

From The Wall Street Journal • Jun. 4, 2026

In 2018, Lin appointed Xu to lead Three-Body Universe, a subsidiary to manage projects related to the science fiction franchise.

From BBC • May 26, 2026

It’s been five years since our friendly neighborhood webslinger’s last big-screen adventure and a lot has changed in the Marvel Cinematic Universe.

From Los Angeles Times • May 14, 2026

Kepler had nothing but his mathematical ability and a burning zeal to unlock the mysteries of the Universe.

From "The Scientists" by John Gribbin