space-time

In physics, spacetime is any mathematical model that combines space and time into a single construct called the space-time continuum. Spacetime is usually interpreted with space being three-dimensional and time playing the role of the fourth dimension. According to Euclidean space perception, the universe has three dimensions of space, and one dimension of time. By combining space and time into a single manifold, physicists have significantly simplified a large amount of physical theory, as well as described in a more uniform way the workings of the universe at both the supergalactic and subatomic levels.
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Noun
1. the 4-dimensional coordinate system (3 dimensions of space and 1 of time) in which physical events are located
(synonym) space-time continuum
(hypernym) coordinate system, frame of reference, reference system, reference frame

Space-time A concept taken over by Einstein from Minkowski, in which time (considered as a vector) is no longer regarded as independent of spatial extension, but is made a fourth coordinate in determining the position of an event. Our ordinary threefold spatial extension is a concept due to our physical experience, so that there is no reason why we cannot adopt a concept of another order if we find it suits our purposes better. We can view the universe under the form of a threefold spatial extension and an independent time, or we can view it under the form of a four-dimensional continuum, wherein a coordinate representing position in time takes its place along with three others representing position in space. The points of light form distant stars which we view in the sky are separated from each other not only by spatial distances but also by distances in time, owing to the time taken by light to travel. Space-time is a mathematical conception, useful in certain measurements demanded by modern science, but not answering to anything of which we can form a clear mental image. It is difficult to picture a line drawn from the American President in Washington to Cicero in the Roman Forum; or vice versa, but such a line in either direction would according to modern mathematical theory traverse space-time.

space-time /'speis'taim/
danh từ (triết học) không gian thời gian
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Eng: space-time
Urdu: زمان و مکان ۔ تَسَلسُل زمان و مکان