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

See Examples For:

universe universes

Prime Video is making the biggest push into this universe.

From The Wall Street Journal ● Jul. 15, 2026

In an alternate universe, the Sparks’ win over Chicago on Friday could have been a barometer to indicate whether general manager Raegan Pebley’s gamble to trade Rickea Jackson to the Sky paid off.

From Los Angeles Times ● Jul. 11, 2026

The gaming universe of Warhammer 40,000 is surging in popularity to the point where it’s attracted the devotion of celebrities like Henry Cavill.

From Slate ● Jul. 10, 2026

Alternating with this story are chapters set in a separate universe of medieval fantasy.

From The Wall Street Journal ● Jul. 10, 2026

Had he died in the flames, and was he now trapped in some sort of parallel universe?

From "The Undead Fox of Deadwood Forest" by Aubrey Hartman

Surely literature is a path to discovering other sensibilities, other universes; “Reading Lolita in Tehran,” by contrast, is about people essentially saying, “This book is meaningful because it reminds me of my life.”

From The Wall Street Journal ● Jul. 9, 2026

The process begins with scientists generating large numbers of simulated universes based on physical models.

From Science Daily ● Jun. 29, 2026

“We want to invent this feeling of being inside these universes, the sonification of nature in tune with what we call generative reality.”

From Los Angeles Times ● Jun. 5, 2026

That may help explain how we wound up with “Alice in Wonderland”-style competing proclamations that made it sound as if Xi and Trump had been in different conversations, or perhaps different universes.

From Salon ● May 17, 2026

According to this theory, there are either many different universes or many different regions of a single universe, each with its own initial configuration and, perhaps, with its own set of laws of science.

From "A Brief History of Time: And Other Essays" by Stephen Hawking