A Turnover

1. The amount of money taken as sales transacted in a given period.
2. The frequency with which stock is replaced after being used or sold, workers leave and are replaced, a property changes hands, etc.
3. A semicircular pastry made by turning one half of a circular crust over the other, enclosing the filling (usually fruit).
4. (sports) A loss of possession of the ball without scoring.
5. A measure of leg speed: the frequency with which one takes strides when running, typically given in strides per minute.
6. The act or result of overturning something; an upset.
7. (dated) An apprentice, in any trade, who is handed over from one master to another to complete his time.