ˈspās-ˈtīm How to pronounce space-time (audio)
: a system of one temporal and three spatial coordinates by which any physical object or event can be located

called also space-time continuum

: 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 Discovering the motion of space-time Scientists found evidence that the fabric of space and time gets warped by gravitational waves. Harold Maass, The Week Us, theweek, 18 Apr. 2024 Miller’s character, the titular superhero also known as Barry Allen, appears to have created a rupture in the space-time continuum, giving way for another Multiverse of Madness comic-book movie. Zoe Guy, Vulture, 30 Mar. 2024 In some cases, what appears at first to be a singularity — a point in space-time where mathematical descriptions lose their meaning — may in fact be an illusion. Steve Nadis, Quanta Magazine, 31 May 2024 This hair has to do with the rate of change, or the gradient, of space-time’s curvature at the horizon. Gaurav Khanna, Discover Magazine, 27 May 2024 Jocelyn Read, a professor of Physics at California State University Fullerton peers through a model of the space-time around a black holes at her office at CSUF in Fullerton on Thursday, May 16, 2024. Andre Mouchard, Orange County Register, 19 May 2024 As the camera reaches the speed of light, the accretion disc becomes more distorted as space-time warps. Eric Lagatta, USA TODAY, 7 May 2024 For four years, its array of three satellites will tumble through space in an equilateral triangle some million miles across, bouncing lasers off the golden cubes kept in perfect free fall within each craft to feel for ripples in space-time. Elise Cutts, Quanta Magazine, 17 Apr. 2024 The new approach measures the region of space-time that’s significantly curved by the proton. Charlie Wood, WIRED, 14 Apr. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'space-time.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1910, in the meaning defined at sense 1

Time Traveler
The first known use of space-time was in 1910

Dictionary Entries Near space-time

Cite this Entry

“Space-time.” Dictionary, Merriam-Webster, Accessed 22 Jun. 2024.

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