parallel dimension
Coexisting separate universe
A parallel dimension is a hypothetical realm of existence alongside our own, separated not by distance but by some fundamental barrier—different vibrational frequencies, branching timelines, or layers of reality.
The concept appears in physics (many-worlds interpretation, string theory) and saturates science fiction: The portal opened into a parallel dimension where dinosaurs never went extinct.
Often used interchangeably with parallel universe, though dimension emphasizes the spatial or structural separation rather than cosmic scope.
- alternate realityHypothetical different version of existence
- multiverseHypothetical set of universes
- portalImposing entrance or gate
- riftCrack or estrangement
- wormholeHypothetical spacetime tunnel
timeline · universe · gateway · other side · veil · crossing · mirror world · quantum · quantum leap · fold · breach · slipstream · otherworld · divergence · nexus · convergence · plane · shift
- origin storieslab accident, alien planet, mutation, tragic backstory, gamma radiation
- parallel worldsalternate universe, alternate reality, alternate world, mirror universe, other world
- measurementsheight, stature, meters, depth, pound
- Fantasy RealmsNarnia, Middle-earth, Hogwarts, Oz, Neverland
- Unknown PlacesAtlantis, El Dorado, Shangri-La, lost city, terra incognita
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