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BNC: 1652 COCA: 11765

jack
1 jack /ˈʤæk/ noun
plural jacks
1 jack
/ˈʤæk/
noun
plural jacks
Learner's definition of JACK
1 
[count] : a device used for lifting something heavy (such as a car)起重器；千斤顶
2 
[count] : a playing card that has a picture of a soldier or servant and that is worth more than a ten and less than a queen（纸牌中的）J牌，杰克
— see picture at playing card
3 
[count] : a small opening where something connects with a wire to something else插座；插口，插孔
4 
a  [count] : a small usually metal object that has six points and that is used in the game of jacks（抛接子游戏中的）金属片
b  jacks [plural] : a child's game in which jacks are thrown and picked up while bouncing and catching a small ball抛接子游戏
5 
[noncount] US slang : anything at all根本；丝毫— used in negative statements用于否定句
2 jack /ˈʤæk/ verb
jacks; jacked; jacking
2 jack
/ˈʤæk/
verb
jacks; jacked; jacking
Learner's definition of JACK

jack in

[phrasal verb]
jack in (something) or jack (something) in British, informal
: to stop doing (something)停止；结束

jack off

[phrasal verb] US, informal + impolite, of a man
: masturbate

jack up

[phrasal verb]
1 
jack up (something) or jack (something) up
: to lift (something, such as a car) with a jack用千斤顶抬起
2 
informal : to increase (something, such as a price) by a large amount提高，增加（价格等）
BNC: 1652 COCA: 11765

jack

1 of 2

noun

ˈjak How to pronounce jack (audio)
plural jacks
1
a
jacks plural in form but singular in construction : a game played with a set of small objects that are tossed, caught, and moved in various figures
b
: a small 6-pointed metal object used in the game of jacks
2
a
: a playing card carrying the figure of a soldier or servant and ranking usually below the queen
b
: jackpot sense 1b(2)
3
: any of various usually mechanical devices: such as
a
: a usually portable mechanism or device for exerting pressure or lifting a heavy body a short distance
b
: a device for turning a spit
4
: a female fitting in an electric circuit used with a plug to make a connection with another circuit
5
a
: man
—usually used as an intensive in such phrases as every man jack
b
often capitalized : sailor
c(1)
: servant, laborer
(2)
: lumberjack
6
: something that supports or holds in position: such as
a
: an iron bar at a topgallant masthead to support a royal mast and spread the royal shrouds
b
: a wooden brace fastened behind a scenic unit in a stage set to prop it up
7
a
: any of several fishes
especially : any of various carangids
b
: a male donkey
c
: jackrabbit
d
: any of several birds (such as a jackdaw)
8
a
: a small white target ball in lawn bowling
b
: a small national flag flown by a ship
9
slang : money
10
a
: applejack
b
: brandy
11
: jackknife sense 2
12
: monterey jack
13
US slang : anything at all
—used in negative constructions
In short, Dinger or Homer or whoever it was who wrote the Odyssey didn't know jack about travel. Steve Rushin

jack

2 of 2

verb

jacked; jacking; jacks

transitive verb

1
: to move or lift (something) by or as if by a jack (see jack entry 1 sense 3a) : jack up
It meant that we had to jack the aircraft and check out the undercarriage system … John Revell
Over 500 tons of pressure was used to jack the legs of the [Gateway] Arch apart for the last four-foot piece to be inserted at the top. nps.gov
2
a
: to raise the level or amount of (something) : increase, jack up
The company jacked their rates.
b
: to increase in intensity, scope, etc. : jack up
In the same light, any student has heard of someone taking self-prescribed Adderall to jack their focus for the next big exam. Zeno Yeates
3
a
informal : steal
"She jacked my pencil" one boy screamed. "But only because he jacked my pen" the girl yelled back. Jason Kane
especially : to steal (a car)
A man is accused of stealing from a Bradenton hardware store and then jacking a nearby car … Giuseppe Sabella
b
informal : rob
jack a store
Droopy was always promising to rob old ladies, but so far had jacked only a pizza delivery man … Gini Sikes
4
informal : to cause great excitement, enthusiasm, or energy in : jack up
Even Phil Mickelson, the Masters champion of a year ago and a three-time winner in 2005, can't jack the audience like Woods. Gerry Dulac
5
: to hunt or fish for (an animal) at night with a jacklight or similar bright light
… if old-fashioned country stores were anything like ours is today, you could find just about any type of gossip you might want, from suspicions about who is jacking deer out of season to the darkest speculation about marital infidelities. Cook's Illustrated
6
informal : to copy or appropriate (something, such as an idea or style) : hijack sense 2a
Apparently I'd struck a nerve in that sensitive place called the male ego. In his mind I'd accused him of hip-hop's equivalent of treason—jacking someone's style. Dream Hampton
7
informal : to hit (a ball) forcefully
Five batters later Martinez jacked an upper-deck grand slam off Mark Langston … Tom Verducci
Big Mac turns it up another notch, jacking five homers in his last 11 at-bats to finish with an unreal 70. ESPN
… Mickelson took an aggressive line off the tee and jacked a lob wedge over the green. Alan Shipnuck
8
a
informal : to grab, shove, or handle (someone or something) forcefully : jack up
Behind the building he was greeted by several bruisers looking for blood. "One guy jacked my horn out of my arms and threw it down," he [Ornette Coleman] says. David Grogan
b
informal : to cause injury to (someone or something) : jack up
The next week, he jacked his knee in a practice incident …, and it set him back a bit. racerxonline.com
c
informal : to beat up or hurt (someone) : jack up
Cejudo dropped Cruz with that knee and was jacking him with punches with no real response from Cruz. Dan Bernstein
d
informal : to treat or confront (someone) in a harassing, rough, or overly aggressive and typically unwarranted manner : jack up
"I honestly think the only reason I get jacked by the police is because I'm tall and black," said Maurice [St. Cyere], who is 5'9". The Bay State Banner
9
vulgar : masturbate, jack off

intransitive verb

: to hunt or fish at night with a jacklight or similar bright light
"… jacking involves the use of a high-powered light and a firearm at night. … Whether you are successful in getting a deer or not, it is an illegal act." Blaine Henshaw
jacker noun

see also jacked, jack in, jack into

Synonyms

Noun

Verb

Example Sentences

Noun I'd buy that watch, but I don't have the jack right now. a Portuguese ship flying the national jack
Recent Examples on the Web
Noun
Cut out the carving for way less messy jack-o'-lanterns. Jessica Leigh Mattern, Country Living, 24 Aug. 2022 That and the fact that the 5A has a headphone jack, while the 6A does not. Julian Chokkattu, Wired, 1 July 2022 The right side has a 3.5 mm jack and another USB-C port (3.2 Gen 2). Scharon Harding, Ars Technica, 13 May 2022 This is a device that’s ideal for anyone who wants to use a superb pair of wired headphones with a modern smartphone, most of which don’t have a headphone jack. Mark Sparrow, Forbes, 11 Nov. 2021 Under the watchful eyes of thousands of glowing jack-o'-lanterns, a bevy of attractions will comprise the fourth year of Newfields' Harvest. Domenica Bongiovanni, The Indianapolis Star, 30 Oct. 2021 Shorty often sits in with other Jazz Fest artists, as befits a jack-of-all-trades musician who shines in almost any stylistic setting. George Varga, San Diego Union-Tribune, 10 Aug. 2022 The podcast is hosted by Amanda de Cadenet, who is a jack of all trades and award-winning host, and some of the previous podcast guests have included Naomi Osaka, Adut Akech and Paloma Elsesser. Greg Emmanuel, Essence, 23 June 2022 The only one of the new Inzone headphones that can be used with Xbox is the entry-level H3 series, courtesy of their 3.5mm jack. John Archer, Forbes, 28 June 2022
Verb
While analysts were consistently optimistic about the long-term outlook for several promising software firms, investors fled those companies in recent months as the Federal Reserve’s decision to jack up interest rates punished unprofitable outfits. Jacob Carpenter, Fortune, 5 Aug. 2022 The region’s wholesaler has argued with officials in Sacramento that mandating further conservation will only hurt ratepayers as agencies are forced to further jack up rates to offset plummeting revenue from declining sales. Joshua Emerson Smith, San Diego Union-Tribune, 16 Aug. 2022 From Europe to Asia to Latin America, residential real-estate markets are coming off the boil, and in some cases seeing home values fall, as central banks jack up borrowing costs to bring consumer-price growth to heel. Jason Douglas, WSJ, 18 July 2022 Proposition 30 would jack up our income tax another 1.75% to a previously unimaginable 15.05%. George Skelton, Los Angeles Times, 18 Aug. 2022 With that power, fans have come to accept things like service fees that often jack up the total price by 30 percent, and on-sales for major events where resellers wind up with the lion’s share of the tickets. Andy Greene, Rolling Stone, 2 Aug. 2022 Insurers could jack up prices, knowing that customers would be insensitive to cost changes because subsidies—meaning taxpayers—would make up the difference. Brian Blase, WSJ, 28 July 2022 Essentially what's going on is that big corporations are using the cover of inflation to jack up their prices beyond what their input costs would justify and rake in those profits, and consumers are paying the price. Abc News, ABC News, 20 July 2022 The gravitational pull from tighter Fed policy is being felt across Asia, adding to pressure on the region’s central banks to jack up interest rates to restrain accelerating inflation. Jason Douglas, WSJ, 20 May 2022 See More

Word History

Etymology

Noun

Middle English Jacke, familiar term of address to a social inferior, nickname for Johan John

First Known Use

Noun

1548, in the meaning defined at sense 5a

Verb

1833, in the meaning defined at intransitive sense 2

Time Traveler
The first known use of jack was in 1548

Phrases Containing jack

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BNC: 1652 COCA: 11765
jack

noun

  ➡ note at card

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