jumper



a knitted garment typically with long sleeves, worn over the upper body.

a loose outer jacket worn by sailors.

a pinafore dress.

a person or animal that jumps

a short wire used to shorten an electric circuit or close it temporarily.

a rope made fast to keep a yard or mast from jumping.

a heavy chisel-ended iron bar for drilling blast holes.

a mushroom-shaped brass part in a tap which supports the washer.

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definition by Oxford Dictionaries