parallel universe

American  

[par-uh-lel yoo-nuh-vurs] / ˈpær əˌlɛl ˈyu nəˌvɜrs /

noun

1. Physics. any of a hypothetical collection of undetectable universes that are like our known universe but have branched off from our universe due to a quantum-level event.

2. (in cosmology) a hypothetical universe that coexists with our known universe but may operate under fundamentally different laws of physics.

3. Also called alternate universe,.  Also called alternative universe.  (in science fiction, fantasy, etc.) a separate universe or world that coexists with our known universe but is very different from it.

4. a realm of existence and experience that is fundamentally different from the one that most humans share; a separate reality.

   I don’t understand him—I think he lives in a parallel universe.

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Etymology

Origin of parallel universe

First recorded in 1920–25

Example Sentences

Rodeo FX worked on seasons four and five of the Netflix show that follows a group of teenagers in small town America as they take on supernatural creatures and a parallel universe.

From Barron's

In a parallel universe, Francesca Jones might now be sitting at home preparing applications for university courses.

From BBC

Perhaps he has, in a parallel universe - more on that later.

From BBC

In his parallel universe he said that winning wasn't everything while his masterpiece was under construction.

From BBC

"It's about moments, it's about details," he said, as if moments and details exist in a parallel universe from players and managers.

From BBC