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jettison Line breaks: jet¦ti|son
Pronunciation: /ˈdʒɛtɪs(ə)n/

Definition of jettison in English:


[with object]
1Throw or drop (something) from an aircraft or ship: six aircraft jettisoned their loads in the sea
More example sentences
  • Inbound to Amberley the external drop tanks were jettisoned to reduce the overall weight for what became an uneventful landing.
  • Luckily it had jettisoned its bomb load and the crew baled out to safety and captivity.
  • The crew considered jettisoning the fuel bladders to regain control of the aircraft.
1.1Abandon or discard (someone or something that is no longer wanted): the scheme was jettisoned
More example sentences
  • He's already been in cell 118 for five hours and I decide, no matter what, I'm going to not have the same look on my face when I'm jettisoned.
  • Despite their doubts these men clung precariously to some idea of God, unwilling to jettison Him altogether.
  • He in fact wanted to jettison anyone who would stand up to his dictatorial tendencies.
dump, drop, ditch, discharge, eject, throw out, empty out, pour out, tip out, unload, throw overboard, throw over the side
reject, scrap, dispense with, cast aside/off, abandon, relinquish, drop, have done with, shed, slough off, shrug off, throw on the scrapheap
British informal get shot of
North American informal trash


[mass noun] Back to top  
The action of jettisoning something: [as modifier]: the jettison lever
More example sentences
  • One is you can jettison the fuel if the airplane has a jettison system.
  • On board the battle ship Alkaline, Dex moved cautiously to his station near the jettison pods.
  • When the airplane was in a position to jettison the load, the pilot discovered the jettison switch guard had vibrated back to the closed position.


Late Middle English (as a noun denoting the throwing of goods overboard to lighten a ship in distress): from Old French getaison, from Latin jactatio(n-), from jactare 'to throw' (see jet1). The verb dates from the mid 19th century.

Words that rhyme with jettison


Definition of jettison in:

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