subspace

• IPA^(key): /ˈsʌb.speɪs/

• Audio (US):

  (file)

• Rhymes: -ʌbspeɪs
• Hyphenation: sub‧space

From sub- +‎ space.

subspace (countable and uncountable, plural subspaces)

1. (countable, mathematics) A subset of a space which is a space in its own right.
2. (uncountable, science fiction) Any (often unspecified) method of communicating or travelling faster than light speed.
   • 2023 October 12, Edgar Momplaisir, “A Few Badgeys More” (16:39 from the start), in Star Trek: Lower Decks‎^[1], season 4, episode 7, spoken by Beckett Mariner (Tawny Newsome):

     “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, science fiction) An alternative dimension or universe, access to or use of which permits faster-than-light travel or communications; hyperspace.

• cyclic subspace
• invariant subspace
• linear subspace
• subspace topology

English Wikipedia has an article on:

Subspace (BDSM)

Wikipedia

From sub (“submissive”) +‎ space (“state of mind”).

subspace (countable and uncountable, plural subspaces)

1. (BDSM) The psychological state of the submissive or bottom during sadomasochistic activity.

   Synonym: bottomspace

   Coordinate terms: domspace, topspace

   • 2000, Gloria G Brame, Come hither: a commonsense guide to kinky sex:

     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.

   • 2003, Chelsea Shepard, Two Moons: Worthy of a Master Book One:

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

• sub space, sub-space