Displacement is the change in position of an object. It is a vector quantity and has a direction and magnitude.
Velocity is defined as a vector measurement of the rate and direction of motion. Put simply, velocity is the speed at which something moves in one direction.
Acceleration is the rate of change of velocity per unit time
Distance is The length of the actual path between the initial and the final position of a moving object in the given time interval
Speed is the change in distance per unit time