~ 1
■ noun
1》 Brit. a pullover or sweater.
↘ historical a sailor's loose outer jacket.
2》 N. Amer. a pinafore dress.
Origin
C19: prob. from dialect jump 'short coat', perh. from Scots jupe 'loose jacket or tunic', via OFr. from Arab. jubba .
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~ 2
■ noun
1》 a person or animal that jumps.
2》 (also ~ wire ) a short wire used to shorten or close an electric circuit.
3》 Nautical a rope made fast to keep a yard or mast from jumping.
4》 a heavy chisel-ended iron bar for drilling blast holes.