Noun

1. Someone or something that jumps; eg. a participant in a jumping event in track or skiing.
2. A woolen sweater or pullover.
3. A loose outer jacket, especially one worn by workers and sailors.
4. A one-piece, sleeveless dress, or a skirt with straps and a complete or partial bodice, usually worn over a blouse by women and children.
5. (usually as jumpers) Rompers.
6. A short length of electrical conductor, to make a temporary connection. Also jump wire.
7. A removable connecting pin on an electronic circuit board.
8. A person who attempts suicide by jumping from a great height.