I don't know what different between a dimension and a universe,is a dimension a type of reality or the universe is a type of reality too.

  • In sci-fi jargon the word "dimension" means a kind of parallel universe, the exact nature of which varies from writer to writer. It does not have much if anything to do with the technical term "dimension" as used in mathematics and physics. – user14111 Dec 24 '17 at 5:12
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    @BlueX are you asking what the difference is within science-fiction (which is answerable here) or with real science (which is pretty much off-topic) – HorusKol Dec 24 '17 at 5:15
  • Within the world of stories it's a good question as to how it should be stated, taking into account scientific understanding at this point. "Dimension" used much previously seems a misnomer; dimensions refer to 3 dimensions of space + time (so we live in 4 dimensions) and a higher dimensional being (say one who lives in 5) would be able to move around in time as easily as we move in space. What would a 6 dimensional being experience? Science lately has been using the term "multiverse", Star Trek uses "mirror universe" or lately "mirror-verse". What do we call them going forward? – Hebekiah Dec 24 '17 at 17:56

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