Jump

1. An instance of propelling oneself upwards. He jumped over the short fence.
2. An instance of causing oneself to fall from an elevated location. He ended his life by jumping off the bridge.
3. An instance of employing a parachute to leave an aircraft or elevated position. I made five parachute jumps in the army.
4. An instance of reacting to a sudden stimulus by jerking the body. He jumped when stuck with a pin.
5. A early start or an advantage. We got a jump on the day by getting up early.
6. A jumping move in a board game. In checkers you take an opponent by jumping it.