Source : WordNet®

turnaround
     n 1: time need to prepare a vessel or ship for a return trip
          [syn: {turnaround time}]
     2: a decision to reverse an earlier decision [syn: {reversal},
        {change of mind}, {flip-flop}, {turnabout}]
     3: an area sufficiently large for a vehicle to turn around
     4: act or process of unloading and loading and servicing a
        vessel or aircraft for a return trip [syn: {turnround}]
     5: turning in the opposite direction [syn: {reversion}, {reverse},
         {reversal}, {turnabout}]