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English definition of “jettison”

jettison

verb [T]     /ˈdʒetɪsən/
NOT WANT/NEED to get rid of something you do not want or need: The station has jettisoned educational broadcasts .Removing and getting rid of thingsTaking things away from someone or somewhere
MAKE LIGHTER If an aircraft or a ship jettisons something, it throws it off to make itself lighter .Removing and getting rid of thingsTaking things away from someone or somewhere
(Definition of jettison verb from the Cambridge Learner's Dictionary © Cambridge University Press)

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