space-time
noun
ˈspās-ˈtīm 
ˈspās-ˌtīm
1
: a system of one temporal and three spatial coordinates by which any physical object or event can be located
called also space-time continuum
2
: the whole or a portion of physical reality determinable by a usually four-dimensional coordinate system
also
: the properties characteristic of such an order
Examples of space-time in a Sentence
Recent Examples on the Web
Construction began in 1994 and took more than 20 years, including a four-year shutdown to improve the detectors, before LIGO detected its first gravitational wave in 2015: a ripple in the space-time fabric coming from the faraway collision of a pair of black holes.
—
Quanta Magazine, 21 July 2025
Since space-time reacts to the matter in it, theorists expect that any matter particles in a superposition of occupying two different locations should force space-time into a superposition of two distortions.
—Charlie Wood, Wired News, 20 July 2025
In 2015, the Laser Interferometer Gravitational-wave Observatory (LIGO) directly detected gravitational waves, or ripples in space-time, for the first time ever—almost exactly one century after Einstein had predicted their existence in his general theory of relativity.
—Margherita Bassi, Smithsonian Magazine, 16 July 2025
First theorized in 1916 by Albert Einstein, gravitational waves are ripples in the fabric of space-time created during some of the universe's most powerful events, including the merging or collision of supermassive black holes.
—Eric Lagatta, USA Today, 16 July 2025
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Quanta Magazine, 21 July 2025
Since space-time reacts to the matter in it, theorists expect that any matter particles in a superposition of occupying two different locations should force space-time into a superposition of two distortions.
—Charlie Wood, Wired News, 20 July 2025
In 2015, the Laser Interferometer Gravitational-wave Observatory (LIGO) directly detected gravitational waves, or ripples in space-time, for the first time ever—almost exactly one century after Einstein had predicted their existence in his general theory of relativity.
—Margherita Bassi, Smithsonian Magazine, 16 July 2025
First theorized in 1916 by Albert Einstein, gravitational waves are ripples in the fabric of space-time created during some of the universe's most powerful events, including the merging or collision of supermassive black holes.
—Eric Lagatta, USA Today, 16 July 2025
See All Example Sentences for space-time
Cite this Entry
“Space-time.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/space-time. Accessed 3 Aug. 2025.
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