1. (观点、态度或方法的)彻底转变，完全改变
A turnaround is a complete change in opinion, attitude, or method.

2. (尤指生意或经济的)突然好转，起色，转机
A turnaround is a sudden improvement, especially in the success of a business or a country's economy.

3. 工作所需时间;(飞机或轮船卸货的)停航时间
The turnaround or turnaround time of a task, for example the unloading of an aircraft or ship, is the amount of time that it takes.

1. turning in the opposite direction

Synonym: reversionreversereversalturnabout

2. act or process of unloading and loading and servicing a vessel or aircraft for a return trip

Synonym: turnround

3. an area sufficiently large for a vehicle to turn around

4. a decision to reverse an earlier decision

Synonym: reversalchange of mindflip-flopturnabout

5. time need to prepare a vessel or ship for a return trip

Synonym: turnaround time