Definition of jet noun from the Oxford Advanced Learner's Dictionary

     

    jet

     noun
    noun
    BrE BrE//dʒet//
     
    ; NAmE NAmE//dʒet//
     
    Aircraft
     
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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, jump jet Wordfinderaircraft, bomber, drone, fighter, helicopter, jet, jump jet, parachute, pilot, warplane See related entries: Aircraft
  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 cooker
  3. 3 [uncountable] a hard black mineral that can be polished and is used in jewellery jet beads
  4. Word Originnoun senses 1 to 2 late 16th cent. (as a verb meaning ‘jut out’): from French jeter ‘to throw’, based on Latin jactare, frequentative of jacere ‘to throw’. noun sense 3 Middle English: from Old French jaiet, from Latin Gagates, from Greek gagatēs ‘from Gagai’, a town in Asia Minor.Extra examples He flew to Bermuda in his private jet. He was photographed boarding his private jet. Little jets of steam spurted from the engine. She was flown by private jet to the capital Lusaka. The pilot had to land the jet in a field.
See the Oxford Advanced American Dictionary entry: jet