n.
a series of actions advancing a principle or tending toward a particular end; "he supported populist campaigns"; "they worked in the cause of world peace"; "the team was ready for a drive toward the pennant"; "the movement to end slavery"; "contributed to the war effort"
v.
cause to function by supplying the force or power for or by controlling; "The amplifier drives the tube"; "steam drives the engines"; "this device drives the disks for the computer"