jack

US /dʒæk/

UK /dʒæk/

A1
v.t.Transitive VerbTo increase the amount or intensity of something
Please jack up the heater because I am so cold!
n. (c./u.)Noun (Countable/Uncountable)Increase the amount or intensity of something
There was a major jack in prices for milk this month
v.t.Transitive VerbTo exert pressure on by lifting
Can we jack up the car to change the wheel?
n. (c./u.)Noun (Countable/Uncountable)Tool for exerting pressure or lifting
Put the car jack under the car so we can take off the wheel

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