What is axis meaning?

Axis generally refers to an imaginary line or stem around which an object rotates or revolves. It can also be defined as the point of origin or focal point around which something rotates, revolves, or centers. In mathematics, axis is commonly used to describe the coordinates that are plotted on a graph where two perpendicular lines intersect to form a point. The x-axis is horizontal and the y-axis is vertical in a Cartesian coordinate plane. Additionally, in physics, axis refers to the direction of the motion of a rotating body or particle, for example, the axis of rotation of planets, the Earth's axis, etc.