jack

jack · noun

imported

Definitions

noun

  1. 1.

    A device for lifting heavy objects, especially vehicles.

  2. 2.

    A playing card ranking below a queen and above a ten, typically showing a soldier or servant.

  3. 3.

    A socket designed to receive a plug or connector.

  4. 4.

    A small ball used as a target in bowls.

  5. 5.

    (jacks) A children's game played with small objects.

  6. 6.

    To raise with or as if with a jack.

  7. 7.

    (informal) To increase something significantly.

Forms

plural: jacks

Phrases & expressions

  • •
    jack of all trades — someone who can do many different types of work
  • •
    every man jack — every single person
  • •
    hit the jackpot — win or achieve something desirable
  • •
    jack up — raise; increase

Related words

See also: James, John, card, device
Synonyms: device, knave

Etymology

From "Jack," a common medieval diminutive of "John," used generically to mean "a man" or "fellow." Various objects and devices were named "jack" as they performed tasks a person might do. The name "Jack" comes from Old French "Jacques," from Latin "Jacobus."