A result is something that occurs as a consequence of some action. The result of your practical joke is a puddle of water on the floor and a lump on your cousin's head where the bucket hit him.
A result is also the answer to some problem, especially one obtained by calculation or experimentation. The result you get for a math problem will be wrong if you add when you should multiply. The verb result means to follow as an outcome of some action. If you forget to book a room in advance, it will result in your having to stay at the hotel by the airport instead of one by the beach.