Real Dictionary

turn over
phrasal verb: If you turn over a job or responsibility that you have, you give it to someone else, so that you no longer have it.
phrasal verb: If you turn over when you are watching television, you change to another channel.
phrasal verb: If you turn over, for example when you are lying in bed, you move your body so that you are lying in a different position.
phrasal verb: If you turn something over in your mind, you think carefully about it.
phrasal verb: If you turn something over to someone, you give it to them when they ask for it, because they have a right to it.
phrasal verb: If you turn something over, or if it turns over, it is moved so that the top part is now facing downwards.

turn over in American English
to change the position of, as by rolling
to move or be moved from one side to another

turn over in British English
to change or cause to change position, esp so as to reverse top and bottom

turn over in Retail
verb: A business turns over stock when it replaces the stock it sells with new stock.