Usage Note
Hyperespace belongs primarily to the registers of mathematics (a space of more than three dimensions) and science fiction (faster-than-light travel through a higher-dimensional space). The word is a calque of English 'hyperspace.' It is not common in everyday French; outside technical or genre fiction contexts it would be opaque to most speakers.
Examples
"Le vaisseau voyage dans l'hyperespace."
Natural Translation
The ship travels through hyperspace.
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