A number that identifies a position relative to an axis.
Any element in a group of references to a particular location, such as the intersection of a certain row and column. In computer graphics and displays, coordinates specify such elements as points on a line, the corners of a square, or the location of a pixel on the screen. In other computer applications, coordinates specify cells on a spreadsheet, data points on a graph, locations in memory, and so on. See also Cartesian coordinates, polar coordinates.

1. To be co-ordinated.
2. To bring into common action, movement, or condition.
In geometry, a number that defines the position of a point relative to a point or axis (reference line). Cartesian coordinates define a point by its perpendicular distances from two or more axes drawn through a fixed point mutually at right angles to each other. Polar coordinates define a point in a plane by its distance from a fixed point and direction from a fixed line.

Of equal importance, rank, or degree.