| Rank | Abbreviation | Meaning |
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| ***** | JET LAG. | A physiological condition caused by the disorientation of a person's biological clock due to travel across several time zones. Characterized by irritability, lethargy, insomnia, and other symptoms.
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| **** | JET SKI. | Originally, a one-person, motorized personal water vehicle on which the driver stands upright on ski-like pads. Newer models seat two or three riders. The term is a brand name and a trademark of the K
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| **** | JET STREAM. | 1. Any high-altitude, strong wind current which can aid or hinder jet flight depending on its direction. 2. The trail of condensation left by a jet flying at high altitude.
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| *** | DUAL JET BRIDGES. | In the airline industry, a system in which an airplane can be boarded via two jetways from the terminal.
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| *** | JET PORT. | A synonym for airport. Seldom used.
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| *** | JET LOADER. | See jetway.
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| ** | JET | Juvenile Enforcement Team
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| * | JET | Jeeyar Educational Trust
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| * | JET | Japan Exchange Teacher
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| * | JET | Japan Exchange Teaching
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| * | JET | Japanese Exchange Teachers
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