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  • jet
    jet
    noun
    a stream of a liquid, gas, or small solid particles forcefully shooting forth from a nozzle, orifice, etc.
  • JET
    JET
    acronym
    Joint European Torus; a tokamak plasma-containment device at Culham, Oxfordshire, for research into energy production by nuclear fusion
Synonyms

jet

1 American  
[jet] / dʒɛt /

noun

  1. a stream of a liquid, gas, or small solid particles forcefully shooting forth from a nozzle, orifice, etc.

  2. something that issues in such a stream, as water or gas.

  3. a spout or nozzle for emitting liquid or gas.

    a gas jet.

  4. jet plane.

  5. jet engine.


verb (used without object)

jetted, jetting
  1. to travel by jet plane.

    to jet to Las Vegas for the weekend.

  2. to move or travel by means of jet propulsion.

    The octopus jetted away from danger.

  3. to be shot forth in a stream.

  4. to move or travel rapidly.

    The star halfback jetted toward the goal line.

verb (used with object)

jetted, jetting
  1. to transport by jet plane.

    The nonstop service from New York will jet you to Tokyo in 13 hours.

  2. to shoot (something) forth in a stream; spout.

  3. to place (a pile or the like) by eroding the ground beneath it with a jet of water or of water and compressed air.

adjective

  1. of, relating to, or associated with a jet, jet engine, or jet plane.

    jet pilot; jet exhaust.

  2. in the form of or producing a jet or jet propulsion.

    jet nozzle.

  3. by means of a jet plane.

    a jet trip; jet transportation.

jet 2 American  
[jet] / dʒɛt /

noun

  1. a compact black coal, susceptible of a high polish, used for making beads, jewelry, buttons, etc.

  2. a deep black.

  3. Obsolete. black marble.


adjective

  1. consisting or made of jet.

  2. of the color jet; black as jet.

JET 1 British  
/ dʒɛt /

acronym

  1. Joint European Torus; a tokamak plasma-containment device at Culham, Oxfordshire, for research into energy production by nuclear fusion

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

jet 2 British  
/ dʒɛt /

noun

    1. a hard black variety of coal that takes a brilliant polish and is used for jewellery, ornaments, etc

    2. ( as modifier )

      jet earrings

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

jet 3 British  
/ dʒɛt /

noun

  1. a thin stream of liquid or gas forced out of a small aperture or nozzle

  2. an outlet or nozzle for emitting such a stream

  3. a jet-propelled aircraft

  4. astronomy a long thin feature extending from an active galaxy and usually observed at radio wavelengths

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to issue or cause to issue in a jet

    water jetted from the hose

    he jetted them with water

  2. to transport or be transported by jet aircraft

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
jet Scientific  
/ jĕt /
  1. A rapid stream of liquid or gas forced through a small opening or nozzle under pressure.

  2. An aircraft or other vehicle propelled by one or more jet engines.

  3. A jet engine.


Etymology

Origin of jet1

First recorded in 1660–70; 1940–45 jet 1 for def. 4; from Middle French jeter “to throw,” from unrecorded Vulgar Latin jectāre, from Latin jactus, past participle of jacere “to throw”

Origin of jet2

First recorded in 1350–1400; Middle English jet(e), get(e), from Old French jaiet, gaiet, from Latin gagātēs, from Greek (líthos) gagā́tēs “Gagatic (stone),” named after Gágai, town in Lycia

Explanation

A jet is an airplane that can rapidly travel long distances. To jet is the act of getting somewhere quickly, by jet or any other way, as in, "Do you see what time it is? We better jet!" A jet is an aircraft that gets its power from jet engines rather than propellers. Jets are fast — that's probably why as a verb, jet means "to move quickly," either by taking a jet, like the celebrities who jet around the world, or the more ordinary "if I don't jet, I'll be late for school." Dishwashers and certain kinds of tubs have jets, tiny openings that push water out with great force. The streams of water are also called, you guessed it, jets.

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Vocabulary lists containing jet

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The company manufactures landing gear, jet engines and other materials for commercial and military aircraft.

From Los Angeles Times • May 23, 2026

One of those videos purportedly shows the shoot-down of a blurry object by a US fighter jet.

From BBC • May 22, 2026

She will hop into a helicopter moments after the Indy 500 and head to a nearby private jet that will zip her 366 miles to Concord Airport near Charlotte in an hour.

From Los Angeles Times • May 22, 2026

In the case of AF447, the French court found that Airbus had long known that a critical airspeed sensor on the A330 jet was prone to freezing, and had underestimated the risk that it posed.

From The Wall Street Journal • May 21, 2026

“You can relax. Maybe even take a short nap. I’d recommend that, actually. It helps fight the jet lag.”

From "City Spies" by James Ponti

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