Definitions of jack [ʒæk]

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Definition of 'jack'

Random House Webster's College Dictionary

1. (n.) jack
any of various portable devices for raising or lifting heavy objects short heights, using various mechanical, pneumatic, or hydraulic methods:
an automobile jack.

2.  jack
a connecting device in an electrical circuit designed for the insertion of a plug:
a telephone jack.

3.  jack
(cap.) Informal. fellow; buddy; man (usu. used in addressing a stranger).

4.  jack
one of a set of small, six-pointed metal objects or pebbles used in the game of jacks.

5.  jack
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.  jack
any of several carangid fishes, esp. of the genus Caranx.

7.  jack
Slang. money.

8.  jack
a small flag flown at the bow of a vessel, usu. symbolizing its nationality.

9.  jack
(cap.) a sailor.

10.  jack
a device for turning a spit.

11.  jack
a small, usu. white bowl or ball used as a mark for lawn bowlers to aim at.

12.  jack
a young male salmon before its migration.

13.  jack
Falconry. the male of a kestrel, hobby, or esp. of a merlin.

14. (v.t.) jack
to lift or move (something) with or as if with a jack (usu. fol. by up):
to jack up a car.

15.  jack
to increase, raise, or accelerate (prices, wages, speed, etc.) (usu. fol. by up):
to jack up rents.

16.  jack
to boost the morale of; encourage (usu. fol. by up).

17.  jack
to hunt or fish for with a jacklight.

18. (v.i.) jack
to hunt or fish with a jacklight.

19. (adj.) jack
Carpentry. having a height or length less than that of most of the others in a structure: jack rafter; jack truss.

Etymology: (1350–1400; ME Jakke used in addressing any male, esp. a social inferior, var. of Jakken, var. of Jankin,=JanJohn+-kin -kin)

Definition of 'jack'

Princeton's WordNet

1. (noun) jack, doodly-squat, diddly-squat, diddlysquat, diddly-shit, diddlyshit, diddly, diddley, squat, shit
a small worthless amount
"you don't know jack"

2. (noun) mariner, seaman, tar, Jack-tar, Jack, old salt, seafarer, gob, sea dog
a man who serves as a sailor

3. (noun) laborer, manual laborer, labourer, jack
someone who works with their hands; someone engaged in manual labor

4. (noun) jackfruit, jak, jack
immense East Indian fruit resembling breadfruit; it contains an edible pulp and nutritious seeds that are commonly roasted

5. (noun) jack
a small ball at which players aim in lawn bowling

6. (noun) jack
an electrical device consisting of a connector socket designed for the insertion of a plug

7. (noun) jack, jackstones
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

8. (noun) jack
small flag indicating a ship's nationality

9. (noun) jack, knave
one of four face cards in a deck bearing a picture of a young prince

10. (noun) jack
tool for exerting pressure or lifting

11. (noun) jack
any of several fast-swimming predacious fishes of tropical to warm temperate seas

12. (verb) jack, jackass
male donkey

13. (verb) jack, jack up
lift with a special device
"jack up the car so you can change the tire"

14. (verb) jacklight, jack
hunt with a jacklight

Definition of 'jack'

Kernerman English Learner’s Dictionary

1. (noun) jack
a playing card with a picture of a prince
the jack of clubs

Definition of 'jack'

Webster Dictionary

1. (noun) jack
a large tree, the Artocarpus integrifolia, common in the East Indies, closely allied to the breadfruit, from which it differs in having its leaves entire. The fruit is of great size, weighing from thirty to forty pounds, and through its soft fibrous matter are scattered the seeds, which are roasted and eaten. The wood is of a yellow color, fine grain, and rather heavy, and is much used in cabinetwork. It is also used for dyeing a brilliant yellow

2. (noun) jack
a familiar nickname of, or substitute for, John

3. (noun) jack
an impertinent or silly fellow; a simpleton; a boor; a clown; also, a servant; a rustic

4. (noun) jack
a popular colloquial name for a sailor; -- called also Jack tar, and Jack afloat

5. (noun) jack
a mechanical contrivance, an auxiliary machine, or a subordinate part of a machine, rendering convenient service, and often supplying the place of a boy or attendant who was commonly called Jack

6. (noun) jack
a device to pull off boots

7. (noun) jack
a sawhorse or sawbuck

8. (noun) jack
a machine or contrivance for turning a spit; a smoke jack, or kitchen jack

9. (noun) jack
a wooden wedge for separating rocks rent by blasting

10. (noun) jack
a lever for depressing the sinkers which push the loops down on the needles

11. (noun) jack
a grating to separate and guide the threads; a heck box

12. (noun) jack
a machine for twisting the sliver as it leaves the carding machine

13. (noun) jack
a compact, portable machine for planing metal

14. (noun) jack
a machine for slicking or pebbling leather

15. (noun) jack
a system of gearing driven by a horse power, for multiplying speed

16. (noun) jack
a hood or other device placed over a chimney or vent pipe, to prevent a back draught

17. (noun) jack
in the harpsichord, an intermediate piece communicating the action of the key to the quill; -- called also hopper

18. (noun) jack
in hunting, the pan or frame holding the fuel of the torch used to attract game at night; also, the light itself

19. (noun) jack
a portable machine variously constructed, for exerting great pressure, or lifting or moving a heavy body through a small distance. It consists of a lever, screw, rack and pinion, hydraulic press, or any simple combination of mechanical powers, working in a compact pedestal or support and operated by a lever, crank, capstan bar, etc. The name is often given to a jackscrew, which is a kind of jack

20. (noun) jack
the small bowl used as a mark in the game of bowls

21. (noun) jack
the male of certain animals, as of the ass

22. (noun) jack
a young pike; a pickerel

23. (noun) jack
the jurel

24. (noun) jack
a large, California rock fish (Sebastodes paucispinus); -- called also boccaccio, and merou

25. (noun) jack
the wall-eyed pike

26. (noun) jack
a drinking measure holding half a pint; also, one holding a quarter of a pint

27. (noun) jack
a flag, containing only the union, without the fly, usually hoisted on a jack staff at the bowsprit cap; -- called also union jack. The American jack is a small blue flag, with a star for each State

28. (noun) jack
a bar of iron athwart ships at a topgallant masthead, to support a royal mast, and give spread to the royal shrouds; -- called also jack crosstree

29. (noun) jack
the knave of a suit of playing cards

30. (noun) jack
a coarse and cheap mediaeval coat of defense, esp. one made of leather

31. (noun) jack
a pitcher or can of waxed leather; -- called also black jack

32. (verb) jack
to hunt game at night by means of a jack. See 2d Jack, n., 4, n

33. (verb) jack
to move or lift, as a house, by means of a jack or jacks. See 2d Jack, n., 5

Definitions of 'jack'

The Nuttall Encyclopedia

1. jack
a familiar form of John, the most widely spread of Christian names, and said to be derived from the French Jacques or, as others maintain, from Jankin, a distinctive form of Johan or John; Johnkin gives us Jock and Jockey; from its extreme commonness it has acquired that slightly contemptuous signification observable in such compounds as "every man Jack," "Jack-of-all-trades," "Jack-an-apes," and the name as applied to the knaves in playing-cards, and to the small white ball used as a mark in the game of bowls is an example of its transferred sense.

Translation of 'jack'

Kernerman English Multilingual Dictionary

Sense: 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.
Afrikaans: domkrag	Arabic: رافِعَة سَيّارَه	Bulgarian: крик
Brazilian: macaco	Czech: zdvihák	German: der Wagenheber
Danish: donkraft	Greek: γρύλος	Spanish: gato
Estonian: tungraud	Farsi: جک	Finnish: tunkki
French: cric	Hebrew: מַגבֵּהַ	Hindi: भारी बोझा ऊपर उठाने का यन
Croatian: dizalica	Hungarian: kocsiemelő	Indonesian: dongkrak
Icelandic: tjakkur	Italian: cric	Japanese: ジャッキ
Korean: 잭, 기중기	Lithuanian: domkratas	Latvian: domkrats
Malay: jek	Dutch: krik	Norwegian: jekk, donkraft
Polish: lewarek, podnośnik	Persian: جک	Pashto: (يو ډول ماشين چې درانه با
Portuguese: macaco	Romanian: cric	Russian: домкрат
Slovak: zdvihák	Slovenian: dvigalka	Serbian: dizalica
Swedish: domkraft	Thai: แม่แรง	Turkish: kriko
Taiwanese: 千斤頂	Ukrainian: важіль; домкрат	Urdu: بوجھ اٹھانے کی دستی کل
Vietnamese: bệ đỡ	Chinese: 千斤顶
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