To surrender is to give up control of something to someone else. If you miss curfew, your parents might make you surrender the keys to the car. Okay, it's only a minivan, but it's still cooler than being on foot patrol.
If you want someone to give up, you might order them to surrender. The witch in the Wizard of Oz wrote "Surrender Dorothy!" in the sky above the Emerald City. You can use the noun surrender when you give up on a task. For example, if you are cleaning the house, but every time you finish a room, the kids mess up another, you can throw your hands up and declare, "I surrender!"