- To discard or reject something as being no longer useful, wanted or needed.
- To throw cargo or equipment overboard in an emergency, such as to lighten a ship or an aircraft.
Derived from the old french word 'jeter' meaning to throw.
- The company decided to jettison the outdated technology, and adopt the latest innovations.
- The pilot had to jettison the fuel tanks, to reduce the weight and avoid a crash landing.
- The adventurer had to jettison his backpack, to escape from the rising water in the cave.
- The collector had to jettison some of his items, to make room for new acquisitions.
- The manager had to jettison the proposal, due to the budget cuts and the negative feedback.