## In context|physics|lang=en terms the difference between spacetime and timelike

is that

**spacetime** is (physics) an

*n''-dimensional continuum consisting of dimensions of both space & time normally spacetime is considered as having 4 dimensions (''x'', ''y'', ''z'', ''t *), but higher-dimensional spacetimes are often encountered in theoretical physics, eg the 5-dimensional spacetime of kaluza-klein theory or the 11 dimensions of spacetime in m-theory while

**timelike** is (physics) (

*of the interval between two events in spacetime *) having overlapping light cones, so that information can pass from one to the other, and one can be envisaged as a cause of the other.

## As a noun **spacetime**

is (uncountable|physics) the four-dimensional continuum of the three spatial dimensions plus time.

## As an adjective **timelike** is

(mathematics|physics) of a four-vector in representing a point in spacetime, having a positive four-vector norm.