subspace

sub·space
S1U1B3S1P3A1C3E1
/ˈsʌb.speɪs/

noun

A subset of a space which is a space in its own right.

Less commonScrabble 14

Meanings

subspace1

nounsubspace (countable and uncountable, plural subspaces)

plural subspaces

  1. countablemathematicsA subset of a space which is a space in its own right.
  2. uncountableliteratureAny (often unspecified) method of communicating or travelling faster than light speed.
    1 more example

    “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.”

    2023 October 12, Edgar Momplaisir, “A Few Badgeys More” (16:39 from the start), in Star Trek: Lower Decks, season 4, episode 7, spoken by Beckett Mariner (Tawny Newsome)
  3. uncountableliteratureAn alternative dimension or universe, access to or use of which permits faster-than-light travel or communications; hyperspace.

subspace2

nounsubspace (countable and uncountable, plural subspaces)

plural subspaces · alternative sub space · alternative sub-space

  1. countableuncountableBDSMThe psychological state of the submissive or bottom during sadomasochistic activity.

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

    2003, Chelsea Shepard, Two Moons: Worthy of a Master Book One
    1 more example

    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.

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

    Synonyms: bottomspace

Synonyms & antonyms

nounThe psychological state of the submissive or bottom during sadomasochistic activity.

Origin

subspace · noun

  1. Proto-Indo-European*upó
  2. Proto-Italic*supo
  3. Latinsub
  4. Latinsub-
  5. Englishsub-
  6. Latinspatium
  7. Old Frenchespace
  8. Anglo-Normanspace
  9. Middle Englishspace
  10. Englishspace
  11. Englishsubspace

From sub- + space.

Full word history & related roots →

subspace · noun

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

Full word history & related roots →

Translations

Catalan subespai
  • subespaisubset
Czech podprostor
  • podprostorsubset
Dutch deelruimte
  • deelruimtesubset
Esperanto subspaco
  • subspacosubset
Finnish aliavaruus, aliavaruus
  • aliavaruussubset
  • aliavaruusmethod of communicating
French sous-espace
  • sous-espacesubset
German Unterraum, Teilraum
  • Unterraumsubset
  • Teilraumsubset
Hindi उपसमष्टि
  • उपसमष्टि (upasmaṣṭi)subset
Icelandic hlutrúm
  • hlutrúmsubset
Italian sottospazio
  • sottospaziosubset
Japanese 亜空間
  • 亜空間 (akuukan)subset
Portuguese subespaço, subspace
  • subespaçosubset
  • subspacepsychological state
Romanian subspațiu
  • subspațiusubset
Russian подпространство
  • подпространство (podprostranstvo)subset
Spanish subespacio
  • subespaciosubset
Swedish underrum
  • underrumsubset
Cite this entry
APA

subspace. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/subspace

MLA

“subspace.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/subspace. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “subspace,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/subspace.

Source: subspace on Wiktionary, CC BY-SA 4.0.