名詞 jack:

1. a small worthless amount
   同義詞：doodly-squat, diddly-squat, diddlysquat, diddly-shit, diddlyshit, diddly, diddley, squat, shit
2. a man who serves as a sailor
   同義詞：mariner, seaman, tar, Jack-tar, old salt, seafarer, gob, sea dog
3. someone who works with their hands; someone engaged in manual labor
   同義詞：laborer, manual laborer, labourer
4. immense East Indian fruit resembling breadfruit; it contains an edible pulp and nutritious seeds that are commonly roasted
   同義詞：jackfruit, jak
5. a small ball at which players aim in lawn bowling
6. an electrical device consisting of a connector socket designed for the insertion of a plug
7. game equipment consisting of one of several small six-pointed metal pieces that are picked up while bouncing a ball in the game of jacks
   同義詞：jackstones
8. small flag indicating a ship's nationality
9. one of four face cards in a deck bearing a picture of a young prince
   同義詞：knave
10. tool for exerting pressure or lifting
11. any of several fast-swimming predacious fishes of tropical to warm temperate seas
12. male donkey
    同義詞：jackass

動詞 jack:

1. lift with a special device
   同義詞：jack up
2. hunt with a jacklight
   同義詞：jacklight

1. Jack and Anne are engaged.
   杰克和安妮訂婚了。
2. All work and no play makes Jack a dull boy.
   <諺>只工作不玩耍，聰明杰克也變傻。
3. They've jacked up the price.
   他們已經把價格抬高了。
4. You need a jack to lift the car before repairing it.
   修汽車前，你得用千斤頂把汽車抬起來。
5. Jack up the car, please.
   請用千斤頂把汽車托起來。

jack

n.（名詞）
Often Jack Informal A man; a fellow.
常作 Jack 【非正式用語】 男子，家伙

One who does odd or heavy jobs; a laborer.
傭人，勞工：做零工或重活的人；勞動者
One who works in a specified manual trade. Often used in combination:
手工業(yè)者：在特殊的手工行業(yè)工作的人。經常用在復合詞：
例句：
a lumberjack; a steeplejack.
伐木工人；高空作業(yè)工人

Jack A sailor; a tar.
Jack 船員；水手
Abbr. JGames A playing card showing the figure of a servant or soldier and ranking below a queen.Also called knave
縮寫 J【游戲】 杰克：紙牌上扮演仆人或士兵的角色，牌位低于皇后也作 knave
Games
【游戲】
jacks (used with a sing. or pl. verb)A game played with a set of small six-pointed metal pieces and a small ball, the object being to pick up the pieces in various combinations.
jacks （與單數或復數動詞連用）拋接子游戲：用一套有六個尖的金屬片和一個小球玩的游戲，可以采用不同的組合方式選取這些物品
One of the metal pieces so used.
金屬卡：被用來做這種游戲的金屬片
Sports A pin used in some games of bowling.
【體育運動】 木瓶：用在某些保齡球運動中的木瓶

A usually portable device for raising heavy objects by means of force applied with a lever, screw, or hydraulic press.
千斤頂，起重機：通過杠桿、螺絲釘或水的壓力把重物提起的便攜式裝置
A wooden wedge for cleaving rock.
木楔：用來劈裂巖石的木楔
Nautical
【航海】
A support or brace, especially the iron crosstree on a topgallant masthead.
鐵橫桁：撐桿或支柱，尤指上桅桅頂的鐵橫桁
A small flag flown at the bow of a ship, usually to indicate nationality.
艦首小旗：在船首飄揚的小旗，用來表示國別
The male of certain animals, especially the ass.
雄性動物：某些動物的雄性，尤指公驢
Any of several food and game fishes of the family Carangidae, found in tropical and temperate seas.
狗魚：一種鲹科的食用觀賞魚，產于熱帶和溫帶海域
A jackrabbit.
長耳大野兔
A socket that accepts a plug at one end and attaches to electric circuitry at the other.
插座：一端連接插頭，另一端連接電路線的插座
Slang Money.
【俚語】 錢
Applejack.
蘋果白蘭地
v.（動詞）
jacked,jack.ing,jacks
v.tr.（及物動詞）
To hunt or fish for with a jacklight:
用篝燈獵捕：
例句：
hunters illegally jacking deer.
獵人違法地用篝燈誘捕熊

To hoist with a jack:
用千斤頂托起：
例句：
jacked the rear of the car to replace the tire.
用千斤頂將車子的后部抬起，以便更換輪胎

To raise (something) to a higher level, as in cost:
抬升，抬高：將（某物）抬升到較高程度，如價格：
例句：
.Foreign producers jacked up the price on some steels by over 00.(Forbes)
.國外生產商已經把鋼鐵價格抬升了一倍多.(福布斯)

v.intr.（不及物動詞）
To hunt or fish for quarry by using a jacklight.
用篝燈打獵或捕魚

<常用詞組>jack off 【粗俗用語】 【俚語】
To masturbate.
手淫
來源：
From the name Jack
源自名字 Jack
from Middle English Jakke
源自 中古英語 Jakke
possibly from Old French Jacques
可能源自 古法語 Jacques
from Latin Iacôbus
源自 拉丁語 Iacôbus
from Greek Iakôb
源自 希臘語 Iakôb
from Hebrew Ya`qôb
源自 希伯來語 Ya`qôb

【引伸】
jack.er
n.（名詞）