Longman Dictionary of Contemporary English homepage

Sense: 1-2
Date: 1600-1700
Origin: JET2
Sense: 3
Date: 1300-1400
Language: Old French
Origin: jaiet, from Latin gagates, from Greek, from Gagas, town and river in Asia Minor where it was found

jet

1 noun
     
jet
Related topics: Geology, Air
jet1
1 [countable]TTA a fast plane with a jet engine
jet fighter/aircraft/airliner
a squadron of F-6 jet fighter aircraft
He owns a private jet.
 ➔ jumbo jet
2 [countable] a narrow stream of liquid or gas that comes quickly out of a small hole, or the hole itself
jet of
She soaped herself beneath the refreshing jets of water.
3 [uncountable]HEG a hard black stone that is used for making jewellery
Definition from the Longman Dictionary of Contemporary English
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