English Reference

Word

multiverse

Phoneticsmul·ti·verse

Definitions

01physics and philosophy

B2 · Science

n. the idea that there are many different universes besides the one we live in.

n. the hypothetical set of all possible universes, including the one we inhabit, often discussed in quantum mechanics and cosmology.

“Some scientists believe in a multiverse where every choice creates a new reality.”

“The inflationary multiverse theory suggests that our observable universe is merely one bubble in a vast, eternal sea of other universes.”

Academic · Technical

Usage

Usually used with the definite article 'the'.

Synonyms

meta-universeomniverse

Antonyms

02fiction and media

B1

n. a collection of different stories or timelines in movies and books where characters can meet.

n. the totality of different canons, continuities, or parallel timelines within a fictional franchise.

“In the latest superhero movie, different versions of the hero meet in the multiverse.”

“The studio used the concept of a multiverse to reboot the franchise while keeping the original actors in guest roles.”

Informal

Usage

Often used as a plot device to explain inconsistencies in a story's history.

Synonyms

parallel worldsalternate timelines

03a chaotic world

C2 · Philosophy

n. a way of describing the world as a place without a clear plan or purpose.

n. the world or existence viewed as lacking a coherent design, purpose, or predictable order.

“The poet described the multiverse as a cold place where things happen by pure chance.”

“His philosophical treatise argues that we inhabit a multiverse of random occurrences rather than a divinely ordered system.”

Literary · Formal

Usage

This sense is rare in modern conversation and is mostly found in older philosophical texts.

Synonyms

Antonyms

Real-World Examples

“The multiverse is a hypothetical idea that our universe is just one of many that exist, and there may be an infinite number of universes.”
Smithsonian Magazine · 18 Aug 2026

Etymology

First appeared c. 1895. Blend of multiple + universe, coined by American philosopher William James. By surface analysis, multi- + -verse.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Domains

PhilosophyPhysics

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

Scan code

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English Reference