noun

subspace

SUHB-spays

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Subspace (noun) means In mathematics, a smaller set within a larger space that itself has the properties of a space. Example: “The vectors form a subspace of the larger three-dimensional space.”

noun

In mathematics, a smaller set within a larger space that itself has the properties of a space.

"The vectors form a subspace of the larger three-dimensional space."

In science fiction, a hypothetical dimension used for faster-than-light travel or communication.

"The starship sent a distress call through subspace."

How to use subspace

Learner’s notes

In plain EnglishA mathematical term for a space within a space, or a fictional concept from sci-fi for faster-than-light travel.

Common pairings

subspace communication vector subspace

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C2 · Advanced serendipity Fortunate discoveries made entirely by accident.

Gen Z slang rizz Charm — the ability to attract a romantic interest.

B2 · Intermediate empathy The capacity to share another person’s feelings.

C1 · Advanced nonchalant Casually calm and relaxed; unconcerned.

Internet slang delulu Delusional — believing something against the odds.

Etymology nostalgia Greek nostos “return home” + algos “pain”.

C2 · Advanced serendipity Fortunate discoveries made entirely by accident.

Gen Z slang rizz Charm — the ability to attract a romantic interest.

B2 · Intermediate empathy The capacity to share another person’s feelings.

C1 · Advanced nonchalant Casually calm and relaxed; unconcerned.

Internet slang delulu Delusional — believing something against the odds.

Etymology nostalgia Greek nostos “return home” + algos “pain”.

Word forms

Plural: subspaces

Test yourself on “subspace” A quick quiz — meaning, synonyms & usage →

Fill the gap

Can you complete this real example?

The vectors form a _____ of the larger three-dimensional space.

Etymology

From sub- ("within, part of") plus space.

Rhymes for subspace

ace face race pace mace lace Jace peace space trace grace place

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Frequently asked questions

What does “subspace” mean?

The word “subspace” means in mathematics, a smaller set within a larger space that itself has the properties of a space. In plain terms, a mathematical term for a space within a space, or a fictional concept from sci-fi for faster-than-light travel.

How do you pronounce “subspace”?

“Subspace” is pronounced SUHB-spays (/ˈsʌb.speɪs/ in IPA).

How do you use “subspace” in a sentence?

Here is “subspace” used in a sentence: “The vectors form a subspace of the larger three-dimensional space.”

What part of speech is “subspace”?

“Subspace” is a noun.

How many meanings does “subspace” have?

“Subspace” has 2 distinct senses listed in this dictionary. The most common is: in mathematics, a smaller set within a larger space that itself has the properties of a space.