1an abrupt or unexpected change, especially one that results in a more favourable situation:it was a remarkable turnaround in his fortunes
2the process of completing or the time needed to complete a task, especially one involving receiving something, processing it, and sending it out again:a seven-day turnaround
the process of or time taken for unloading and reloading a ship, aircraft, or vehicle:short hops with quick turnarounds and limited in-flight service
3North American a space for vehicles to turn round in, especially one at the end of a driveway.