[jump.er] n (1611) 1: a person who jumps
2. a: any of various devices operating with a jumping motion b: any of several sleds c: a short wire used to close a break or cut out part of a circuit
3: any of several jumping animals; esp: a saddle horse trained to jump obstacles
4: jump shot
[2]jum.per n [prob. fr. E dial. jump jumper] (1853) 1: a loose blouse or jacket worn by workmen
2: a sleeveless one-piece dress worn usu. with a blouse
3: a child's coverall--usu. used in pl.
4. chiefly Brit: sweater
2.