In American English, a jumper is a sleeveless collarless dress; see jumper dress.

In British English, a jumper is a sweater made of knitted wool.

In computer electronics, a jumper is a pair of connectable pins; see jumper (computing).

The name was first applied to a sailor's jacket. The word comes from the Quechua language in which chompa means "a loose, outer jacket".

See also: loanword, American and British English differences.