After the collision of two 747s on the runway at Tenerife, the term "cleared for takeoff" is now used only when the tower has approved the actual use of the run

After the collision of two 747s on the runway at Tenerife, the term "cleared for takeoff" is now used only when the tower has approved the actual use of the runway for takeoff. If also read of "Max Power" for the situation you are describing.