A "turn" or "rotation" refers to the action of moving an object around a central point or axis. This movement can be seen in various contexts, such as the rotation of the Earth around its axis, which causes day and night. In geometry, a turn can describe the movement of shapes, where a figure is rotated a certain number of degrees. In everyday life, we experience turns when we spin a toy top or rotate a steering wheel while driving. The concept of rotation is also important in physics, where it helps explain the behavior of objects in motion, such as planets and satellites in space.