Definition of jet noun from the Oxford Advanced American Dictionary

     

    jet

     noun
    noun
    NAmE//dʒɛt//
     
     
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  1. 1[countable] a plane driven by jet engines a jet aircraft/fighter/airliner The accident happened as the jet was about to take off. see also jumbo (jet), jump jet
  2. 2 [countable] a strong narrow stream of gas, liquid, steam, or flame that comes very quickly out of a small opening. The opening is also called a jet The pipe burst and jets of water shot across the room. to clean the gas jets on the stove
  3. 3[uncountable] a hard black mineral that can be polished and is used in jewelry jet beads
See the Oxford Advanced Learner's Dictionary entry: jet