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Definition of spacetime

spacetime

/ˈspeɪs.taɪm/
space · time
Plural:spacetimes
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spacetime Lexical Profile

spacetime Game Scores & Validity

• noun

1

A four-dimensional continuum in physics that combines the three dimensions of physical space with the single dimension of time into a unified manifold, in which gravitational fields are described as geometric curvature.

Example

"According to general relativity, massive celestial bodies like stars and black holes warp the surrounding fabric of spacetime."

Synonyms
View all synonyms for spacetime

• Rhymes for spacetime

• Nearby Words

spacer
spaceship
spacesuit
spacetime
spacewalk
spacewalker
spacewoman

Word Origin & Etymology

Coined in the early 20th century as a compound of 'space' and 'time', translated from German 'Raumzeit', a concept introduced by mathematician Hermann Minkowski in 1908 to geometrically formulate Albert Einstein's special theory of relativity.

Cite this Entry

Wordmom. (2026). Definition of Spacetime. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/spacetime
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