jack

1. N-COUNT A jack is a device for lifting a heavy object, such as a car, off the ground. 千斤顶

2. V to lift or push (an object) with a jack 用千斤顶去顶

3. N-COUNT A jack is a playing card whose value is between a ten and a queen. A jack is usually represented by a picture of a young man. (纸牌中的) J

...the jack of spades. …黑桃J。

4. N-COUNT a man or fellow 人

5. N-COUNT a female socket with two or more terminals designed to receive a male plug (jack plug) that either makes or breaks the circuit or circuits 插座[electrical engineering]

6. N-COUNT a short sleeveless coat of armour of the Middle Ages, consisting usually of a canvas base with metal plates 一种中世纪的无袖铠甲

7. N jackfruit或jakfruit的缩写→short for jackfruit

8. ADJ tired or fed up with (something) 对(事物)厌倦的[AUSTRALIAN] [slang]