# Dictionary Definition

subspace n : a space that is contained within
another space

# User Contributed Dictionary

## English

### Noun

- A subset of a space which is a space in its own right
- Any (often unspecified) method of communicating faster than light

# Extensive Definition

Subspace may refer to:

- Euclidean subspace, in linear algebra, a set of vectors in n-dimensional Euclidean space that is closed under addition and scalar multiplication.
- Linear subspace, in linear algebra, a subset of a vector space that is closed under addition and scalar multiplication
- Subspace topology, in topology and related areas of mathematics
- Hyperspace (science fiction), a fictional dimension in science fiction sometimes referred to as subspace
- Subspace (Star Trek), a medium for faster-than-light communications or travel
- SubSpace (computer game), a two-dimensional space shooter computer game
- The Subspace Emissary, the single player Adventure mode in the video game Super Smash Bros. Brawl.
- Subspace (BDSM), the psychological state of the submissive partner in a BDSM scene
- Subspace (single), a single by Funker Vogt

subspace in German: Unterraum

subspace in Japanese: 部分空間

subspace in Chinese: 子空間