Move towards take-off (4)

I believe the answer is:
taxi
(Other definitions for taxi that I've seen before include "Transport for hire" , "Cab for hire" , "Prepare to take off" , "Hired vehicle" , "move on ground before take-off" .)
I believe the answer is:
taxi
(Other definitions for taxi that I've seen before include "Transport for hire" , "Cab for hire" , "Prepare to take off" , "Hired vehicle" , "move on ground before take-off" .)