takeoff
take.off \'ta--.ko.f\ n often attrib 1: an imitation esp. in the way of
caricature 2a: a rise or leap from a surface in making a jump or flight or
an ascent i n an aircraft or in the launching of a rocket 2b: an action of
starting out or setting out 3a: a spot at which one takes off 3b: a
starting point : point of departure 4: an action of removing something 5:
the action of estimating or measuring an amount of material needed 6: a
mechanism for transmission of the power of an engine or vehicle to ope rate
some other mechanism