jack

US /dʒæk/
UK /dʒæk/
"jack" picture
1.

a device for lifting heavy objects, especially one for raising the axle of a motor vehicle off the ground so that a wheel can be changed or the underside inspected.

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He used a hydraulic jack to lift the car.
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Make sure the car is stable on the jack before working underneath it.
:
hoistliftcrane
2.

a playing card with a picture of a young man on it, ranking below a queen and above a ten.

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He drew the jack of spades.
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Two jacks and a queen make a good hand.
:
knave
3.

a male given name, a diminutive of John.

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My friend Jack is coming over tonight.
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Have you met Jack from accounting?
1.

to lift (something heavy) with a jack.

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He had to jack up the car to change the tire.
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The mechanics jacked up the truck for inspection.
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liftraiseelevate
:
jumping jackjack cheesejack upjack-of-all-tradesjack-of-all-trades, master of none