jumper

Từ điển Oxford Advanced Learner 8th

jump·er [jumper jumpers] BrE [ˈdʒʌmpə(r)] NAmE [ˈdʒʌmpər] noun
1. (BrE)a knitted piece of clothing made of wool or cotton for the upper part of the body, with long sleeves and no buttons
•a woolly jumper
2. (NAmE) = ↑pinafore
3. a person, an animal or an insect that jumps
•He's a good jumper.

Word Origin:
senses 1 to 2 mid 19th cent. (originally meaning a loose jacket worn by sailors): probably from dialect jump ‘short coat’, perhaps from Scots jupe ‘a man's ’ (later also a woman's) ‘loose jacket or tunic’, via Old French from Arabic jubba. Compare with ↑jibba.

• Từ đồng nghĩa / Synonyms:
  jump shot, pinafore, pinny, sweater