Definition of jack up

jack upphrasal verb

nâng lên

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The phrase "jack up" originated in the nautical world in the early 19th century. A "jack" was a wooden block with a metal tooth or pin on one end that was used to raise heavy objects by slotting the tooth or pin into a hole drilled in the object and then turning the jack to lift it. The term "jack up" referred specifically to the process of raising a ship's hull out of the water using temporary support structures, such as metal beams and wooden cribs, in order to facilitate repairs, inspection, or maintenance. The action of lifting the ship was compared to that of lifting an object with a jack. The phrase has since been adopted in various other contexts, such as to describe the process of raising a car or other vehicle with a hydraulic jack, or to denote the use of props or scaffolding to raise or support a structure during construction or renovation. It is a common expression in multiple industries, demonstrating the enduring relevance of maritime language and practices.

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to lift something, especially a vehicle, off the ground using a jack

nâng một vật gì đó, đặc biệt là xe cộ, lên khỏi mặt đất bằng cách sử dụng kích

Example:
  • Thieves jacked up the car and stole the wheels.

    Kẻ trộm đã nâng chiếc xe lên và lấy cắp bánh xe.

to increase something, especially prices, by a large amount

tăng một cái gì đó, đặc biệt là giá cả, lên một lượng lớn