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[jet] /dʒɛt/
a stream of a liquid, gas, or small solid particles forcefully shooting forth from a nozzle, orifice, etc.
something that issues in such a stream, as water or gas.
a spout or nozzle for emitting liquid or gas:
a gas jet.
verb (used without object), jetted, jetting.
to travel by jet plane:
to jet to Las Vegas for the weekend.
to move or travel by means of jet propulsion:
The octopus jetted away from danger.
to be shot forth in a stream.
to move or travel rapidly:
The star halfback jetted toward the goal line.
verb (used with object), jetted, jetting.
to transport by jet plane:
The nonstop service from New York will jet you to Tokyo in 13 hours.
to shoot (something) forth in a stream; spout.
to place (a pile or the like) by eroding the ground beneath it with a jet of water or of water and compressed air.
of, relating to, or associated with a jet, jet engine, or jet plane:
jet pilot; jet exhaust.
in the form of or producing a jet or jet propulsion:
jet nozzle.
by means of a jet plane:
a jet trip; jet transportation.
Origin of jet1
1580-90; 1940-45 for def 4; < Middle French jeter to throw < Vulgar Latin *jectāre, alteration of Latin jactāre, equivalent to jac- throw + -t- frequentative suffix + -āre infinitive suffix


[jet] /dʒɛt/
a compact black coal, susceptible of a high polish, used for making beads, jewelry, buttons, etc.
a deep black.
Obsolete. black marble.
consisting or made of jet.
of the color jet; black as jet.
1350-1400; Middle English jet, get < Old French jaietLatin gagātēs < Greek (líthos) gagā́tēs Gagatic (stone), named after Gágai, town in Lycia; compare obsolete gagate, Middle English, Old English gagātes < Latin, as above Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for jets
  • These were modest stunts, to be sure, except for this fact: the jets have no pilots.
  • For example, fighter jets could be designed to be more acrobatic without risk of stall-induced crashes.
  • Zeroing in on the cause of high-speed jets issuing from energetic galactic cores.
  • The school repeatedly leapt out of the ocean, spurting jets of water behind them as they flew through the air.
  • These jets of plasma travel outward along the magnetic field lines which are twisted by the rotating accretion disk.
  • Big modern jets have taken nearly all the danger out of air travel, and nearly all the glamour, too.
  • Its crew has what the crews of fighter jets lack: situational, smell-of-the-battlefield awareness.
  • Military jets, anyway, are only supposed to be used by ministers performing official duties.
  • Ammonia spotted in the jets could act as antifreeze in under-ice oceans.
  • Each squid, as it's captured, frantically tries to free its tentacles from the hooks by emitting great jets of water.
British Dictionary definitions for jets


a thin stream of liquid or gas forced out of a small aperture or nozzle
an outlet or nozzle for emitting such a stream
a jet-propelled aircraft
(astronomy) a long thin feature extending from an active galaxy and usually observed at radio wavelengths
verb jets, jetting, jetted
to issue or cause to issue in a jet: water jetted from the hose, he jetted them with water
to transport or be transported by jet aircraft
Word Origin
C16: from Old French jeter to throw, from Latin jactāre to toss about, frequentative of jacere to throw


  1. a hard black variety of coal that takes a brilliant polish and is used for jewellery, ornaments, etc
  2. (as modifier): jet earrings
Word Origin
C14: from Old French jaiet, from Latin gagātēs, from Greek lithos gagatēs stone of Gagai, a town in Lycia, Asia Minor


noun acronym
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
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Word Origin and History for jets



early 15c., "to prance, strut, swagger," from Middle French jeter "to throw, thrust," from Late Latin iectare, abstracted from deiectare, proiectare, etc., in place of Latin iactare "toss about," frequentative of iacere "to throw, cast," from PIE root *ye- "to do" (cf. Greek iemi, ienai "to send, throw;" Hittite ijami "I make"). Meaning "to sprout or spurt forth" is from 1690s. Related: Jetted; jetting.


"stream of water," 1690s, from French jet, from jeter (see jet (v.)). Sense of "spout or nozzle for emitting water, gas, fuel, etc." is from 1825. Hence jet propulsion (1867) and the noun meaning "airplane driven by jet propulsion" (1944, from jet engine, 1943). The first one to be in service was the German Messerschmitt Me 262. Jet stream is from 1947. Jet set first attested 1951, slightly before jet commuter plane flights began. Jet age is attested from 1952.

"deep black lignite," mid-14c., from Anglo-French geet, Old French jaiet "jet, lignite" (12c.), from Latin gagates, from Greek gagates lithos "stone of Gages," town and river in Lycia. As "a deep black color," also as an adjective, attested from mid-15c.

Online Etymology Dictionary, © 2010 Douglas Harper
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jets in Science
  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.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang definitions & phrases for jets



To leave; air out, split (1990s+ Teenagers)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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