The term you're looking for is "displacement." Displacement refers to the change in position of an object relative to a reference point or a starting position. It is a vector quantity, meaning it has both magnitude (the distance between the initial and final positions) and direction (the direction from the initial position to the final position). Displacement can be positive, negative, or zero, depending on the movement of the object relative to the reference point.
For example, if an object moves from point A (0 meters) to point B (5 meters), the displacement is +5 meters. If it then moves back to a point C (2 meters), the displacement from the original point A to point C is +2 meters, while the overall displacement from B to C would be -3 meters.