[noun] [C] [UK and ANZ] - a woollen item of clothing which covers the upper part of the body and the arms, and which does not open at the fronta woollen/woolly jumperI'm knitting Myra a jumper for her birthday.(US and ANZ) A jumper is also a dress which does not cover the arms and which is usually worn over another item of clothing which does cover the arms.
JUMPER
Meaning of JUMPER in English
Cambridge English vocab. Кембриджский английский словарь. 2012