The **point** is a primitive concept of geometry. Intuitively equivalent to a dimensionless spatial entity, for which it may be considered simply as a position, that is, as a coordinate. In topology and calculus, any element of a topological space and, in particular, a functional space is often called a point.

A point in Euclidean geometry has no quantities of any kind (volume, area, length), and no characteristics in general except its position. Euclidâ€™s postulates assert in some cases the existence of points; an example: if two lines in a plane are not parallel, there is exactly one point that belongs to both.

Three or more points in space are said to be aligned if they are contained in a straight line. Four or more points in space are said to be coplanar if they are contained in a plane.