Definition of Jack

1. Verb. Lift with a special device. "Jack up the car so you can change the tire"

Exact synonyms: Jack Up
Generic synonyms: Bring Up, Elevate, Get Up, Lift, Raise

2. Noun. A small worthless amount. "You don't know jack"

3. Verb. Hunt with a jacklight. "In the summer they like to go out and jack"
Exact synonyms: Jacklight
Generic synonyms: Hunt, Hunt Down, Run, Track Down

4. Noun. A man who serves as a sailor.

5. Noun. Someone who works with their hands; someone engaged in manual labor.

6. Noun. Immense East Indian fruit resembling breadfruit; it contains an edible pulp and nutritious seeds that are commonly roasted.
Exact synonyms: Jackfruit, Jak
Generic synonyms: Edible Fruit
Group relationships: Artocarpus Heterophyllus, Jackfruit, Jackfruit Tree

7. Noun. A small ball at which players aim in lawn bowling.
Group relationships: Bowls, Lawn Bowling
Generic synonyms: Ball

8. Noun. An electrical device consisting of a connector socket designed for the insertion of a plug.
Generic synonyms: Electrical Device
Specialized synonyms: Phone Jack, Telephone Jack

9. 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.
Exact synonyms: Jackstones
Generic synonyms: Game Equipment

10. Noun. Small flag indicating a ship's nationality.
Generic synonyms: Flag

11. Noun. One of four face cards in a deck bearing a picture of a young prince.
Exact synonyms: Knave
Generic synonyms: Court Card, Face Card, Picture Card

12. Noun. Tool for exerting pressure or lifting.
Specialized synonyms: Bumper Jack, Jackscrew, Screw Jack
Generic synonyms: Tool

13. Noun. Any of several fast-swimming predacious fishes of tropical to warm temperate seas.

14. Noun. Male donkey.
Exact synonyms: Jackass
Generic synonyms: Ass

Definition of Jack

1. n. 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. n. A familiar nickname of, or substitute for, John.

3. n. A coarse and cheap mediæval coat of defense, esp. one made of leather.

4. n. A pitcher or can of waxed leather; -- called also black jack.

5. v. i. To hunt game at night by means of a jack. See 2d Jack, n., 4, n.

6. v. t. To move or lift, as a house, by means of a jack or jacks. See 2d Jack, n., 5.

Definition of Jack

1. Proper noun. (given name male ), also used as a pet form of John. ¹

2. Proper noun. (informal) A sailor. ¹

3. Proper noun. (informal archaic) a soldier ¹

4. Noun. (slang) Jack Daniel's, a brand of American whiskey. ¹

5. Noun. A mechanical device used to raise and (temporarily) support a heavy object. ¹

6. Noun. A man or men in general. ¹

7. Noun. A male animal. ¹

8. Noun. (card games) The card ranking between the (term ten) and (term queen) of any suit, picturing a knave or prince on its face. In some card games has a value of eleven based on its rank, but in many card games has a value of ten like the ''ten'', ''queen'', and (term king) cards. Also called a ''knave''. ¹

9. Noun. (archaic) A knave (a servant or later, a deceitful man). ¹

10. Noun. (zoology) A male ass. ¹

11. Noun. A surface-mounted connector for electrical, especially telecommunications, equipment. ¹

12. Noun. (sports) A target ball in bowls, etc; a jack-ball. ¹

13. Noun. (games) A small, six-pointed playing piece used in the game of jacks. ¹

14. Noun. (colloquial) Nothing, jackshit. ¹

15. Noun. (nautical) A small flag at the bow of a ship. ¹

16. Noun. (nautical) A naval ensign flag flown from the main mast, mizzen mast, or the aft-most major mast of (especially) British sailing warships; Union Jack. ¹

17. Noun. (military) A coarse and cheap medieval coat of defense, especially one made of leather. ¹

18. Noun. (two-up) A penny with a head on both sides, used for cheating. (Reference: Sidney J. Baker, ''The Australian Language'', second edition, 1966, chapter XI section 3, page 243.) ¹

19. Noun. (slang) Money. ¹

20. Noun. (slang Appalachians) A smooth often ovoid large gravel or small cobble in a natural water course. ¹

21. Noun. A common name for the freshwater pike, green pike or pickerel. ¹

22. Noun. Large California rockfish. ¹

23. Noun. An order of marine fish in the ''Carangidae'' family. ¹

24. Noun. (obsolete nautical) A sailor; a "jack tar". ¹

25. Verb. (transitive) To use a jack. ¹

26. Verb. (transitive) To raise or increase. ¹

27. Verb. (transitive colloquial) To steal something, typically an automobile. Contraction of carjacking ¹

28. Verb. (transitive slang baseball) To hit (the ball) hard; especially, to hit (the ball) out of the field, producing a home run. ¹

¹ Source:

Definition of Jack

1. to raise with a type of lever [v -ED, -ING, -S]

Medical Definition of Jack

1. Young salmon, usually a male, that matures precociously. (12 Jan 1998)

Lexicographical Neighbors of Jack


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