turn something over in one’s mind

turn Verb

— To face a different direction The car turned the corner and went north. Walk down the street and turn left at the lights. The dancers turned round and around. — If something turns a certain way, it becomes that way. The sky turned dark and cloudy. The game turned into a fight.

something Compound Determinative

— an unspecified (un- + specified) object. I'm going to wear something today. — an event. Isn't something going to happen? — a special object. You're really something!

over Preposition

— Something is over when it has finished, usually referring to an event. When the movie was over we left the movie theater. — In a location above something. He stepped over the dog. — From one side to the other. They went over the bridge. — If you invite someone over, you invite them to your house. They had him over for tea. — A number divided by another. Eight over two is four.

over Noun

— An over in a cricket match is six balls bowled from one end. The captain told me I would have to bowl the next over.

in Preposition

— Used to show that something is inside something else. The cat is in the box. — Used to show that someone is at home, or is available. Is John in? The Doctor is now in. — Used to show movement towards the inside. The rain came in through the window.

mind Noun

— Someone's mind is the part of them that thinks. In my mind I know I must go, but in my heart I want to stay here. We will solve this problem. We have the best minds in the country working on it.

mind Verb

— If you mind some action or thing, you feel negatively about it. "Do you mind if I sit here?" "No, not at all" "It's raining outside. You should take an umbrella" "It's OK, I don't mind the rain" — If you mind someone or something, you look after it. "Could you mind the children while I go to the bathroom?"