jack

J0002200 (jăk)n.1. often Jack Informal A man; a fellow.2. a. One who does odd or heavy jobs; a laborer.b. One who works in a specified manual trade. Often used in combination: a lumberjack; a steeplejack.c. Jack A sailor; a tar.3. Abbr. J Games A playing card showing the figure of a servant or soldier and ranking below a queen. Also called knave.4. Games a. jacks(used with a sing. or pl. verb) A game played with a set of small, six-pointed, traditionally metal pieces and a small ball, the object being to pick up the pieces in various combinations.b. One of the six-pointed pieces so used.5. Sports A pin used in some games of bowling.6. a. A usually portable device for raising heavy objects by means of force applied with a lever, screw, or hydraulic press.b. A wooden wedge for cleaving rock.7. A device used for turning a spit.8. Nautical a. A support or brace, especially the iron crosstree on a topgallant masthead.b. A small flag flown at the bow of a ship, usually to indicate nationality.9. The male of certain animals, especially the ass.10. Any of various food and game fishes of the family Carangidae, found in tropical and temperate seas.11. A jackrabbit.12. A socket that accepts a plug at one end and attaches to electric circuitry at the other.13. Slang Money.14. Applejack.15. Slang A small or worthless amount: You don't know jack about that.v. jacked, jack·ing, jacks v.tr.1. To hunt or fish for with a jacklight: hunters illegally jacking deer.2. a. To move or hoist by using a jack. Often used with up: jacked the rear of the car to replace the tire.b. To raise (something) to a higher level, as in cost. Often used with up: "Foreign producers jacked up the price on some steels by over 100%" (Forbes).3. Baseball To hit (a pitched ball) hard, especially for a home run.4. Slang a. To steal: Someone jacked my bike.b. To rob or cheat: The dealer jacked me on the price.v.intr.1. To hunt or fish by using a jacklight.2. To plug into an electronic device by means of a jack.Phrasal Verbs: jack around1. To spend time idly.2. To toy, tinker, or mess: He's been jacking around with that motor for days.3. To take unfair advantage of, deceive, or manipulate. jack off Vulgar Slang 1. To masturbate. Usually used of a man.2. To bring (someone) to orgasm. jack up To excite emotionally.

[From the name Jack, from Middle English Jakke, possibly from Old French Jacques, from Late Latin Iacōbus; see Jacob. N., sense 15, short for jack shit. V. tr., senses 4a and b, short for hijack.]

jack′er n.

jack

(dʒæk) n1. a man or fellow2. (Nautical Terms) a sailor3. (Animals) the male of certain animals, esp of the ass or donkey4. (Mechanical Engineering) a mechanical or hydraulic device for exerting a large force, esp to raise a heavy weight such as a motor vehicle5. (Cookery) any of several mechanical devices that replace manpower, such as a contrivance for rotating meat on a spit6. (Card Games) one of four playing cards in a pack, one for each suit, bearing the picture of a young prince; knave7. (Bowls & Bowling) bowls a small usually white bowl at which the players aim with their own bowls8. (Electrical Engineering) electrical engineering a female socket with two or more terminals designed to receive a male plug (jack plug) that either makes or breaks the circuit or circuits9. (Nautical Terms) a flag, esp a small flag flown at the bow of a ship indicating the ship's nationality. Compare Union Jack10. (Nautical Terms) nautical either of a pair of crosstrees at the head of a topgallant mast used as standoffs for the royal shrouds11. (Instruments) a part of the action of a harpsichord, consisting of a fork-shaped device on the end of a pivoted lever on which a plectrum is mounted12. (Animals) any of various tropical and subtropical carangid fishes, esp those of the genus Caranx, such as C. hippos (crevalle jack)13. (Games, other than specified) Also called: jackstone one of the pieces used in the game of jacks14. short for applejack, bootjack, jackass, jackfish, jack rabbit, lumberjack15. US a slang word for money16. every man jack everyone without exception17. (Pathology) the jack slang Austral venereal diseaseadjjack of slang Austral tired or fed up with (something)vb (tr) 18. (Mechanical Engineering) to lift or push (an object) with a jack19. (Electrical Engineering) electrical engineering to connect (an electronic device) with another by means of a jack and a jack plug20. (Hunting) Also: jacklight US and Canadian to hunt (fish or game) by seeking them out or dazzling them with a flashlight[C16 jakke, variant of Jankin, diminutive of John]

jack

(dʒæk) or

jak

n (Plants) short for jackfruit[C17: from Portuguese jaca; see jackfruit]

jack

(dʒæk) n1. (Arms & Armour (excluding Firearms)) a short sleeveless coat of armour of the Middle Ages, consisting usually of a canvas base with metal plates2. (Brewing) archaic a drinking vessel, often of leather[C14: from Old French jaque, of uncertain origin]

Jack

(dʒæk) nI'm all right, Jack informal a. a remark indicating smug and complacent selfishnessb. (as modifier): an 'I'm all right, Jack' attitude.

jack

(dʒæk)

n. 1. any of various portable devices for raising or lifting heavy objects short heights, using various mechanical, pneumatic, or hydraulic methods: an automobile jack. 2. Also called knave. a playing card bearing the picture of a soldier or servant. 3. a connecting device in an electrical circuit designed for the insertion of a plug: a telephone jack. 4. (cap.) Informal. fellow; buddy; man (usu. used in addressing a stranger). 5. a. one of a set of small, six-pointed metal objects or pebbles used in the game of jacks. b. jacks, (used with a sing. v.) a children's game in which these objects are tossed and gathered, usu. while bouncing a rubber ball. 6. any of several carangid fishes, esp. of the genus Caranx. 7. Slang. money. 8. a small flag flown at the bow of a vessel, usu. symbolizing its nationality. 9. (cap.) a sailor. 10. lumberjack. 11. jackass (def. 1). 12. jacklight. 13. Slang. anything at all; the least thing (usu. used in the negative): You don't know jack. 14. a device for turning a spit. 15. a small, usu. white bowl or ball used as a mark for lawn bowlers to aim at. 16. a young male salmon before its migration. 17. Falconry. the male of a kestrel, hobby, or esp. of a merlin. v.t. 18. to lift or move (something) with or as if with a jack (usu. fol. by up): to jack up a car. 19. to increase, raise, or accelerate (prices, wages, speed, etc.) (usu. fol. by up): to jack up rents. 20. to boost the morale of; encourage (usu. fol. by up). 21. to hunt or fish for with a jacklight. v.i. 22. to hunt or fish with a jacklight. 23. jack off, Vulgar Slang. to masturbate. adj. 24. Carpentry. having a height or length less than that of most of the others in a structure: jack rafter; jack truss. [1350–1400; Middle English Jakke used in addressing any male, especially a social inferior, variant of Jakken, variant of Jankin,=Jan John + -kin -kin]

jack

Past participle: jacked
Gerund: jacking

Imperative
jack
jack

Present
I jack
you jack
he/she/it jacks
we jack
you jack
they jack

Preterite
I jacked
you jacked
he/she/it jacked
we jacked
you jacked
they jacked

Present Continuous
I am jacking
you are jacking
he/she/it is jacking
we are jacking
you are jacking
they are jacking

Present Perfect
I have jacked
you have jacked
he/she/it has jacked
we have jacked
you have jacked
they have jacked

Past Continuous
I was jacking
you were jacking
he/she/it was jacking
we were jacking
you were jacking
they were jacking

Past Perfect
I had jacked
you had jacked
he/she/it had jacked
we had jacked
you had jacked
they had jacked

Future
I will jack
you will jack
he/she/it will jack
we will jack
you will jack
they will jack

Future Perfect
I will have jacked
you will have jacked
he/she/it will have jacked
we will have jacked
you will have jacked
they will have jacked

Future Continuous
I will be jacking
you will be jacking
he/she/it will be jacking
we will be jacking
you will be jacking
they will be jacking

Present Perfect Continuous
I have been jacking
you have been jacking
he/she/it has been jacking
we have been jacking
you have been jacking
they have been jacking

Future Perfect Continuous
I will have been jacking
you will have been jacking
he/she/it will have been jacking
we will have been jacking
you will have been jacking
they will have been jacking

Past Perfect Continuous
I had been jacking
you had been jacking
he/she/it had been jacking
we had been jacking
you had been jacking
they had been jacking

Conditional
I would jack
you would jack
he/she/it would jack
we would jack
you would jack
they would jack

Past Conditional
I would have jacked
you would have jacked
he/she/it would have jacked
we would have jacked
you would have jacked
they would have jacked

Jack

1. A small six-pronged object used in the game of jacks, a game widely played by girls in the 1930s. In the early part of the twentieth century such jacks were generally of metal but, by the twenty-first century, were usually plastic.2. A male donkey. The first jack in the U.S. was sent to George Washington by King Charles III of Spain.3. An instrument for raising a heavy weight a short distance.

Thesaurus

Noun	1.	jack - a small worthless amount; "you don't know jack"diddley, diddly, diddlyshit, diddly-shit, diddlysquat, diddly-squat, doodly-squat, squat, shitsmall indefinite amount, small indefinite quantity - an indefinite quantity that is below average size or magnitude
	2.	Jack - a man who serves as a sailor gob, Jack-tar, mariner, old salt, sea dog, seafarer, seaman, tarable seaman, able-bodied seaman - a seaman in the merchant marine; trained in special skillsboatswain, bo's'n, bos'n, bosun, bo'sun - a petty officer on a merchant ship who controls the work of other seamendeckhand, roustabout - a member of a ship's crew who performs manual laborhelmsman, steerer, steersman - the person who steers a shipbargee, bargeman, lighterman - someone who operates a bargeship's officer, officer - a person authorized to serve in a position of authority on a vessel; "he is the officer in charge of the ship's engines"pilot - a person qualified to guide ships through difficult waters going into or out of a harborcrewman, sailor - any member of a ship's crewsea lawyer - an argumentative and contentious seamanwhaler - a seaman who works on a ship that hunts whales
	3.	jack - someone who works with their hands; someone engaged in manual laborlaborer, labourer, manual laboreragricultural laborer, agricultural labourer - a person who tills the soil for a livingbracero - a Mexican laborer who worked in the United States on farms and railroads in order to ease labor shortages during World War IIcleaner - someone whose occupation is cleaningday laborer, day labourer - a laborer who works by the day; for daily wagesdigger - a laborer who digsdishwasher - someone who washes dishesnavvy, peon, drudge, galley slave - a laborer who is obliged to do menial workgandy dancer - a laborer in a railroad maintenance ganggravedigger - a person who earns a living by digging graveshewer - a person who hewshired hand, hired man, hand - a hired laborer on a farm or ranch; "the hired hand fixed the railing"; "a ranch hand"hod carrier, hodman - a laborer who carries supplies to masons or bricklayersgipsy, gypsy, itinerant - a laborer who moves from place to place as demanded by employment; "itinerant traders"faller, feller, logger, lumberjack, lumberman - a person who fells treesminer, mineworker - laborer who works in a minemule driver, mule skinner, muleteer, skinner - a worker who drives mulesplatelayer, tracklayer - a workman who lays and repairs railroad tracksporter - a person employed to carry luggage and suppliesrail-splitter, splitter - a laborer who splits logs to build split-rail fencessawyer - one who is employed to saw woodsection hand - a laborer assigned to a section gangsprayer - a worker who applies spray to a surfacestacker - a laborer who builds up a stack or pilesteeplejack - someone who builds or maintains very tall structuresdock worker, docker, dockhand, dock-walloper, dockworker, loader, longshoreman, lumper, stevedore - a laborer who loads and unloads vessels in a portfireman, stoker - a laborer who tends fires (as on a coal-fired train or steamship)woodcutter - cuts down trees and chops wood as a jobworking man, working person, workingman, workman - an employee who performs manual or industrial laborwrecker - someone who demolishes or dismantles buildings as a jobyardman - a laborer hired to do outdoor work (such as mowing lawns)
	4.	jack - immense East Indian fruit resembling breadfruit; it contains an edible pulp and nutritious seeds that are commonly roastedjak, jackfruitedible fruit - edible reproductive body of a seed plant especially one having sweet fleshArtocarpus heterophyllus, jackfruit, jackfruit tree - East Indian tree cultivated for its immense edible fruit and seeds
	5.	jack - a small ball at which players aim in lawn bowlingbowls, lawn bowling - a bowling game played on a level lawn with biased wooden balls that are rolled at a jackball - round object that is hit or thrown or kicked in games; "the ball travelled 90 mph on his serve"; "the mayor threw out the first ball"; "the ball rolled into the corner pocket"
	6.	jack - an electrical device consisting of a connector socket designed for the insertion of a plugelectrical device - a device that produces or is powered by electricityphone jack, telephone jack - a jack for plugging in a telephone
	7.	jack - game equipment consisting of one of several small six-pointed metal pieces that are picked up while bouncing a ball in the game of jacksjackstonesgame equipment - equipment or apparatus used in playing a game
	8.	jack - small flag indicating a ship's nationalityflag - emblem usually consisting of a rectangular piece of cloth of distinctive design
	9.	jack - one of four face cards in a deck bearing a picture of a young princeknavecourt card, face card, picture card - one of the twelve cards in a deck bearing a picture of a face
	10.	jack - tool for exerting pressure or liftingbumper jack - a jack for lifting a motor vehicle by the bumperjackscrew, screw jack - screw-operated jacktool - an implement used in the practice of a vocation
	11.	jack - any of several fast-swimming predacious fishes of tropical to warm temperate seasCarangidae, family Carangidae - large family of narrow-bodied marine food fishes with widely forked tails; chiefly of warm seascarangid, carangid fish - a percoid fish of the family CarangidaeCaranx hippos, crevalle jack, jack crevalle - fish of western Atlantic and Gulf of MexicoCaranx bartholomaei, yellow jack - fish of western Atlantic and Gulf of Mexicoblue runner, Caranx crysos, runner - fish of western Atlantic: Cape Cod to BrazilElagatis bipinnulata, rainbow runner - streamlined cigar-shaped jack; good game fishleatherjack, leatherjacket - any of several New World tropical fishes having tiny embedded scalesAlectis ciliaris, threadfish, thread-fish - fish having greatly elongated front rays on dorsal and anal finsamberfish, amberjack - any of several amber to coppery fork-tailed warm-water carangid fishesSeriola dorsalis, yellowtail - game fish of southern California and Mexico having a yellow tail finbanded rudderfish, Seriola zonata, rudderfish - fish having the habit of following ships; found in North American and South American coastal watersSeriola grandis, kingfish - large game fish of Australia and New Zealand
	12.	jack - male donkeyjackassass - hardy and sure-footed animal smaller and with longer ears than the horse
Verb	1.	jack - lift with a special device; "jack up the car so you can change the tire"jack uplift, raise, elevate, get up, bring up - raise from a lower to a higher position; "Raise your hands"; "Lift a load"
	2.	jack - hunt with a jacklightjacklighthunt, hunt down, track down, run - pursue for food or sport (as of wild animals); "Goering often hunted wild boars in Poland"; "The dogs are running deer"; "The Duke hunted in these woods"

jack

noun1. A person engaged in sailing or working on a ship.Also used with uppercase:jack-tar, mariner, navigator, sailor, sea dog, seafarer, seaman.Informal: salt, tar.Slang: gob.2. Fabric used especially as a symbol:banderole, banner, banneret, color (used in plural), ensign, flag, oriflamme, pennant, pennon, standard, streamer.3. Slang. Something, such as coins or printed bills, used as a medium of exchange:cash, currency, lucre, money.Informal: wampum.Slang: bread, cabbage, dough, gelt, green, lettuce, long green, mazuma, moola, scratch.Chiefly British: brass.verbTo increase in amount.Also used with up:boost, hike, jump, raise, up.

Translations

千斤顶纸牌中的杰克

jack

(dʒӕk) noun1. an instrument for lifting up a motor car or other heavy weight. You should always keep a jack in the car in case you need to change a wheel.千斤顶2. the playing-card between the ten and queen, sometimes called the knave. The jack, queen and king are the three face cards. （纸牌中的）杰克 jack up to raise (a motor car etc) and keep it supported, with a jack. You need to jack up the car before you try to remove the wheel.用千斤顶顶起

jack

→ 千斤顶zhCN

jack

jack:

see pompanopompano
, common name for fishes of the genus Trachinotus, members of a large and important family (Carangidae) of mackerellike fishes, abundant in warm seas around the world.
..... Click the link for more information. ; tunatuna
or tunny,
game and food fishes, the largest members of the family Scombridae (mackerel family) and closely related to the albacore and bonito. They have streamlined bodies with two fins, and five or more finlets on the back.
..... Click the link for more information. .

jack,

mechanical device used to multiply a relatively small applied force so that it can lift and support heavy loads, or sometimes, move massive objects into a desired position. The lever jack, often used in lifting automobiles, has a lever combined with a ratchet; the lever is used to lift the load a small distance and the ratchet prevents the load from falling back while the lever is reset so that the process can be repeated. In the screw jack the load is moved or lifted by the turning of a screw; the pitch of the screw threads is arranged so that friction is sufficient to hold the load in place when the torque applied to the screw is released. In yet another form of jack a hydraulic device is used. See hydraulic machinehydraulic machine,
machine that derives its power from the motion or pressure of water or some other liquid. Hydraulic Engines

Water falling from one level to a lower one is used to drive machines like the water wheel and the turbine.
..... Click the link for more information. .

Jack

a naval flag that is raised daily on the bow of first-class and second-class ships only when they are at anchor. It is flown with the ensign (usually from 8 A.M. until sunset). The jack of warships of the Soviet Union is a red flag on which is depicted a five-pointed star in white outline with the hammer and sickle in the center.

Jack

a mechanism for lifting heavy piece loads during repair, assembly, or loading and unloading operations. Jacks are characterized by small dimensions and light weight (usually not more than 1 percent of the lifting capacity), low speed (0.01-0.25 m/min), and a lifting height of 0.15-1.0 m. However, special-purpose jacks may have a lifting capacity of several hundred tons and may lift loads to a height of several meters. A jack can raise loads smoothly, stop them accurately, and hold them at a given height. They are classified according to the type of drive as manual and electric and according to the principle of operation and their design features as rack-and-pinion, screw, and hydraulic.

The main part of a rack-and-pinion jack is the load-carrying rack, with a load-supporting pan for the load and with the lower end (foot) bent at a right angle in order to lift loads with a low-slung bearing surface. According to the type of transmission mechanism, rack-and-pinion jacks are divided into rack-and-lever and gear types. In rack-and-lever jacks the rack is advanced by a rocking drive lever; in the gear types it is advanced by means of a pinion rotated by a drive crank. Jacks with a load capacity of up to 6 tons have a one-step transmission, those with a capacity of 6-15 tons have a two-step transmission, and those with a capacity of more than 15 tons have a three-step transmission. Loads that have been lifted by the jack are held up by locking devices. The efficiency of a rack-and-pinion jack with a single-gear drive is 0.85; with a double-gear drive, it is 0.7.

The main part of a screw jack is a screw with a swiveling load-supporting pan; the screw is rotated by a crank. Jacks having sliding carriages that are also equipped with a screw are used to move loads horizontally. The load is held in position by the self-braking action of the screw, thus ensuring a high degree of operating safety. The load capacity of screw jacks usually does not exceed 20 tons, but special jacks are made with capacities of 100 tons and higher and with lifts of up to 2 m. The efficiency of screw jacks does not exceed 0.3-0.4.

Hydraulic jacks may have either periodic action with manual drive or continuous action with mechanical drive. In the periodic-action type, a plunger that supports the load is raised by a working fluid, which is forced into the lower cavity of the housing by a piston pump operated by a hand lever and equipped with intake and delivery valves. The load is lowered by letting the working fluid pass from the housing into the pump reservoir. In the continuous-action type the working fluid is forced into the space above the piston, so that it is not the piston but the housing—together with the load, reservoir, and pump—that is raised. The housing and piston are interconnected with return springs. If the cylinder is supported from below in its extreme upper position and the bypass valve is opened, the piston will rise under the action of the spring forces, and the fluid will flow into the reservoir. Supports are then put under the piston again, and the operating cycle is repeated without shifting the jack. Hydraulic jacks combine the advantages of the screw and rack-and-pinion types. They have high efficiency (0.75-0.80), smooth motion, accurate stopping, automatic braking, compactness, and large load capacity (up to several hundred tons). Their drawbacks are low speed and small lift height per operating cycle.

REFERENCES

Kifer, L. G., and I. I. Abramovich. Gruzopod”emnye mashiny, 2nd ed., part 1. Moscow, 1956.
Mashinostroenie: Entsiklopedicheskii spravochnik, vol. 9. Moscow, 1949. Pages 857-63.

jack

[jak] (electricity) A connecting device into which a plug can be inserted to make circuit connections; may also have contacts that open or close to perform switching functions when the plug is inserted or removed. (mechanical engineering) A portable device for lifting heavy loads through a short distance, operated by a lever, a screw, or a hydraulic press. (mineralogy) sphalerite (textiles) A frame in lace-manufacturing equipment that has horizontal bars to support fixed vertical wires, against which bobbins containing the yarn can freely revolve. An oscillating lever that raises the harness of a dobby loom.

jack

A device to lift aircraft off the ground. Jacks are used for undercarriage retraction, wheel change, rigging checks, etc.

jack

¹1. a sailor 2. the male of certain animals, esp of the ass or donkey 3. a mechanical or hydraulic device for exerting a large force, esp to raise a heavy weight such as a motor vehicle 4. one of four playing cards in a pack, one for each suit, bearing the picture of a young prince; knave 5. Bowls a small usually white bowl at which the players aim with their own bowls 6. Electrical engineering 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 7. a flag, esp a small flag flown at the bow of a ship indicating the ship's nationality 8. Nautical either of a pair of crosstrees at the head of a topgallant mast used as standoffs for the royal shrouds 9. a part of the action of a harpsichord, consisting of a fork-shaped device on the end of a pivoted lever on which a plectrum is mounted 10. any of various tropical and subtropical carangid fishes, esp those of the genus Caranx, such as C. hippos (crevalle jack) 11. one of the pieces used in the game of jacks

jack

² Archaic a drinking vessel, often of leather

jack

A socket, receptacle or port. The term is widely used in the telephony and audio/video worlds; for example, the Registered Jack-11 (RJ-11) is the common telephone wall outlet. Microphones plug into phono jacks on amplifiers. In networking, "port" is the preferred term as in "the switch has 24 RJ-45 ports." However, people coming from the telephony world might say "the switch has 24 RJ-45 jacks." See audio jack, RJ-11, RJ-45 and plugs and sockets.

jack

jack

jack

jack

jak

jack

Jack

jack

jack

Jack

jack

jack

jack

jack

jack

jack

jack:

jack,

Jack

Jack

REFERENCES

jack

jack

jack

jack

jack

jack

spavin

JACK

jack

Synonyms for jack

noun a person engaged in sailing or working on a ship

Synonyms

noun fabric used especially as a symbol

Synonyms

noun something, such as coins or printed bills, used as a medium of exchange

Synonyms

verb to increase in amount

Synonyms

Synonyms for jack

noun a small worthless amount

Synonyms

Related Words

noun a man who serves as a sailor

Synonyms

Related Words

noun someone who works with their hands

Synonyms

Related Words

noun immense East Indian fruit resembling breadfruit

Synonyms

Related Words

noun a small ball at which players aim in lawn bowling

Related Words

noun an electrical device consisting of a connector socket designed for the insertion of a plug

Related Words

noun 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

Synonyms

Related Words

noun small flag indicating a ship's nationality

Related Words

noun one of four face cards in a deck bearing a picture of a young prince

Synonyms

Related Words

noun tool for exerting pressure or lifting

Related Words

noun any of several fast-swimming predacious fishes of tropical to warm temperate seas

Related Words

noun male donkey

Synonyms

Related Words

verb lift with a special device

Synonyms

Related Words

verb hunt with a jacklight

Synonyms

Related Words