Jack

/dʤæk/
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Thân thiện
Definition

  1. Noun:

    • A mechanical lifting device: A tool used to raise heavy objects, especially vehicles.
    • A playing card: One of the four face cards in a deck, bearing the picture of a young prince or soldier.
    • A small, six-pointed metal object: A piece used in the children's game of jacks.
    • A male donkey.
    • A sailor; a common man: An informal term for a man, often a laborer.
    • A small flag: Especially one flown on a ship to indicate nationality.
    • A connector: An electrical socket designed to receive a plug.
    • A worthless amount: Used informally to mean "nothing at all."

  2. Verb:

    • To lift with a jack: To raise something, especially a vehicle, using a mechanical device.
    • To hunt with a jacklight: To hunt at night using a bright light.
Usage Examples

  • Noun:

    • We need a jack to change the flat tire.
    • He drew the jack of hearts from the deck.
    • The kids are playing with a ball and a set of jacks.
    • Every man jack of them helped with the move. (informal)
    • You don't know jack about computers. (slang)

  • Verb:

    • Please jack up the car so I can look underneath.
    • It is illegal to jack deer in this state.
Advanced Usage

  • "Jack of all trades": A person who can do many different types of work.

    • He's a real jack of all trades; he can fix cars, build furniture, and program computers.

  • "Jack up" (phrasal verb):

    • To raise with a jack: We had to jack up the house to repair the foundation.
    • To increase sharply (informal): The company jacked up its prices last month.
    • To abandon or quit (slang): He jacked up his job and moved to the coast.
Variants and Related Words
  • Jackpot (n): The top prize in a game or lottery.
  • Jackknife (n/v): A large pocketknife; (for a truck) to fold sharply.
  • Lumberjack (n): A person who fells trees.
  • Union Jack (n): The national flag of the United Kingdom.
Synonyms
  • Lift, raise (verb)
  • Mechanic, laborer, worker (noun, for a man)
  • Nothing, zero, zilch (noun, for a worthless amount, slang)
Related Phrasal Verbs
  • Jack in (slang): To stop doing something, to quit.
    • I'm going to jack in this job and find a new one.
  • Jack around (slang): To waste time or mess about.
    • Stop jacking around and get to work!
Related Idioms
  • Before you could say Jack Robinson: Very quickly or suddenly.
    • He was gone before you could say Jack Robinson.
  • Jack of all trades, master of none: Said of someone who is competent in many skills but is not outstanding in any particular one.
  • Hit the jackpot: To have great success or luck, especially in winning money.
    • She really hit the jackpot with that investment.
Verb
  1. hunt with a jacklight
  2. lift with a special device
    • jack up the car so you can change the tire
Noun
  1. male donkey
  2. any of several fast-swimming predacious fishes of tropical to warm temperate seas
  3. tool for exerting pressure or lifting
  4. one of four face cards in a deck bearing a picture of a young prince
  5. small flag indicating a ship's nationality
  6. 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
  7. an electrical device consisting of a connector socket designed for the insertion of a plug
  8. a small ball at which players aim in lawn bowling
  9. immense East Indian fruit resembling breadfruit; it contains an edible pulp and nutritious seeds that are commonly roasted
  10. someone who works with their hands; someone engaged in manual labor
  11. a man who serves as a sailor
  12. a small worthless amount
    • you don't know jack

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