turn over

Short definition from Wiktionary

Verb

1. 1
   Used other than figuratively or idiomatically: see turn, over.
2. 2
   To flip over; to rotate uppermost to bottom.
3. 3
   To relinquish; give back.
4. 4
   To transfer.
5. 5
   To produce, complete, or cycle through.
6. 6
   To generate (a certain amount of money from sales).
7. 7
   To mull, ponder
8. 8
   To spin the crankshaft of an internal combustion engine using the starter or hand crank in an attempt to make it run.
9. 9
   To give up control (of the ball and thus the ability to score).
10. 10
    To cause extensive disturbance or disruption to (a room, storage place, etc.), e.g. while searching for an item, or ransacking a property.