subspace

noun

1. (countable)A subset of a space which is a space in its own right.
2. (uncountable)Any (often unspecified) method of communicating or travelling faster than light speed.

   ““If he reconfigures the subspace relays and uploads his own code into them, he'll have access to the computers on every planet, ship, and station.” “Alarming. He could vent oxygen, crash vessels, or even detonate warp cores.” “Everyone in the quadrant's gonna die, and it's all my fault.” “Parents are not directly responsible for the actions of their children.””

3. (uncountable)An alternative dimension or universe, access to or use of which permits faster-than-light travel or communications; hyperspace.
4. (countable, uncountable)The psychological state of the submissive or bottom during sadomasochistic activity.

   “My problem, though, is that when he whips me, I resist going into subspace. He has to whip me for fifteen or twenty minutes before I even begin to feel any psychological effects.”

   “When he was far gone into subspace, pain was enough to make him come.”