turn‧a‧round /ˈtɜːnəraʊnd $ ˈtɜːrn-/ (also turnround British English) noun [singular]

1. the time it takes to receive something, deal with it and send it back, especially on a plane, ship etc:
The average turnaround for a passport application is six working days.
We must reduce costs and shorten turnaround times.

2. a complete change from a bad situation to a good one
turnaround in
the remarkable turnaround in our economy ⇒ turn around at turn¹

3. a turnabout

[TahlilGaran] Dictionary of Contemporary English ▲