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

Preskill, for his part, would like to simulate the quantum nature of space-time. —Quanta Magazine, 3 Apr. 2026

Having your entire concept of the space-time continuum blown up will do that to a person. —Maggie Fremont, Vulture, 26 Mar. 2026

This insight helped guide Einstein toward his revolutionary reframing of gravity as a consequence of the curvature of space-time by massive objects rather than a force pulling us toward the center of Earth. —Encyclopedia Britannica, 23 Mar. 2026

Giant subterranean sandworms measuring 1,500 feet long; a narcotic that fuels interstellar travel and bends a user’s perception of space-time; a mystical cabal of eugenicist witches—the list goes on. —Andrew Paul, Popular Science, 19 Mar. 2026

Word History

First Known Use

1910, in the meaning defined at sense 1

Rhymes for space-time

• aforetime
• allozyme
• anytime
• christmastime
• cybercrime
• dinnertime
• guggenheim
• isozyme
• lysozyme
• maritime
• mesenchyme
• overtime