a person who jumps
"as the jumper neared the ground he lost control"
"the jumper's parachute opened"
a coverall worn by children
"The toddler's bright yellow jumper was covered in mud after he rolled down the hill."
a small connector used to make temporary electrical connections
"The mechanic reached into his toolkit and pulled out a jumper to connect the dead battery terminals while waiting for help."
a loose jacket or blouse worn by workmen
"The construction worker adjusted his high-visibility jumper before climbing the scaffolding to repair the roof."
Someone or something that jumps, e.g. a participant in a jumping event in track or skiing.
"He pulled on his wool jumper to stay warm in the cold wind."
A woolen sweater or pullover.
In plain English: A jumper is an old-fashioned word for a sweater that you wear on your upper body to stay warm.
"She put on her sweater and jumper to stay warm outside."
Usage: In British English, "jumper" refers to a knitted sweater worn over a shirt, whereas American speakers typically use the word "sweater." Do not confuse this clothing item with someone who performs jumping actions in sports events.
To connect with an electrical jumper.
"The technician used a metal wire to jump the faulty connection and restore power to the circuit."
In plain English: To jump is to push yourself off your feet and move through the air quickly, usually landing back on them again.
"Please stop jumping on my bed, you will break it."
A surname.
"Mr. Jumper arrived at the meeting on time despite his usual tardiness."
The word jumper is formed by adding the suffix -er to the verb jump. It originally described a person who jumps and later came to refer to clothing designed to allow jumping or leaping.