› if prices, profits, shares, etc. jump, they increase by a large amount in a short period of time: Interest rates look set to jump over the coming months.jump from sth to sth The PMI index jumped from 54.5 to 56.1 in March, its highest level for six years. jump (by) 31%/98 points/€116, etc. The airline's full-year pre-tax profits jumped 56% despite the impact of higher oil prices. Overall music sales have jumped more than 19 percent in the last twelve months.
jump ship informal › to leave a company or organization in order to work for another, especially in order to get a higher salary or better working conditions: Loyalty bonuses were paid to staff so they wouldn't jump ship.
jump on the bandwagon › to become involved in an activity that a lot of others are already involved in because it is successful: More and more companies have jumped on the broadband discount bandwagon.