Cartesian coordinate is a mathematical system that is widely used to plot points in a two-dimensional plane. It is also referred to as a rectangular coordinate system. Some common synonyms for Cartesian coordinate include rectangular coordinate, coordinate plane, Euclidean coordinate system, and orthogonal coordinate system. Other less common synonyms include rectangular coordinate system, Cartesian coordinate plane, and rectilinear coordinate system. Regardless of the terminology used, Cartesian coordinates are an essential tool for analyzing and solving mathematical problems in various fields such as physics, engineering, and computer science. The use of synonyms for this system proves helpful while referring to it in different settings or contexts.