jet Definition

jet¹
noun

1a. A hard black variety of lignite that can be cut and polished and was formerly a popular gemstone, used to make jewellery and ornaments;


Example: jet necklace

Etymology: 14c: from French jaiet.

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jet²
noun

1. A strong continuous stream of liquid gas, forced under pressure from a narrow opening.

Thesaurus: spray, flow, gush, issue, rush, spout, stream, spurt, squirt, surge, fountain.
2. An orifice, nozzle or pipe through which such a stream is forced.
3. Any device powered by such a stream of liquid or gas, especially a jet engine.
4. An aircraft powered by a jet engine.

Thesaurus: airplane, plane, aircraft, jumbo jet.
Form: jet aircraft (also)

verb jetted, jetting

tr & intr
1. colloq
To travel or be transported by jet aircraft.
intr
2. To emit liquid or gas in a jet; to spurt.

Etymology: 16c: from French jeter to throw.