verb: to push oneself off the ground using the muscles in one's legs and feet
The cat can jump from the floor to the top of the refrigerator.
noun: a sudden increase or rise, especially in price, amount, or level
There was a sudden jump in the stock market after the announcement.
verb: to react quickly to a sudden stimulus, often in surprise
The loud noise made him jump.
verb: to begin or start something eagerly or quickly, especially a task or enterprise
Let's all jump into the project without delay.
