jack

The definition of a jack is a machine used for lifting or moving something heavy.

(noun)

An example of jack is what you would use to lift your car to change a flat tire.

A jack is defined as the lowest ranking card of the royal cards in a playing deck.

(noun)

An example of jack is above the ten card and below the queen in points.

YourDictionary definition and usage example. Copyright © 2013 by LoveToKnow Corp.

See jack in Webster's New World College Dictionary

noun pl. jacks, jack

  1. John
    1. Obsolete a common fellow or boy assistant
    2. a man or boy; fellow: sometimes used as a slang form of address
    3. Now Rare a sailor; jack-tar
    4. ☆ a lumberjack
    5. a jack-of-all-trades
    1. bootjack
    2. Monterey Jack
    3. smokejack
  2. a fruit-flavored alcoholic liquor, as applejack
  3. any of various machines used to lift, hoist, or move something heavy a short distance: hydraulic jack, automobile jack
  4. a wooden bar attached to each key of a harpsichord, etc. that raises the plectrum when the key is depressed
  5. a male donkey; jackass
  6. ☆ jack rabbit
  7. any of various birds, as a jackdaw
    1. any of a tropical, marine family (Carangidae) of predatory, silvery, percoid, game and food fishes with widely forked tails, including the pompanos and yellowtails
    2. jackfish
  8. Slang money
  9. Elec. a plug-in receptacle used to make electrical contact
  10. Games
    1. a playing card with a conventionalized picture of a royal male servant or soldier on it; knave
    2. a small ball used as the center mark in lawn bowling
    3. any of the small stones or six-pronged metal pieces used in playing jacks
  11. Hunting a torch or light used to attract fish or game at night
  12. Naut. a small flag usually flown on a ship's bow to show nationality, often, specif., union jack

Origin: ME Jacke, Jake < OFr Jaque, Jaques < LL(Ec) Jacobus, Jacob

transitive verb

  1. to raise by means of a jack
  2. ☆ to hunt or fish for with a light

adjective

male: of some animals

  1. male: jackass
  2. large or strong: jackboot
  3. boy; fellow: used in hyphenated compounds: jack-in-the-box

Origin: see jack

See jack in American Heritage Dictionary 4

noun
  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 metal pieces and a small ball, the object being to pick up the pieces in various combinations.
    b. One of the metal 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 several 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.
verb jacked, jack·ing, jacks jacks
verb, transitive
  1. To hunt or fish for with a jacklight: hunters illegally jacking deer.
  2. a. To move or hoist by or as if by using a jack: jacked the rear of the car to replace the tire.
    b. To raise (something) to a higher level, as in cost: “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.
verb, intransitive
To hunt or fish for quarry by using a jacklight.
Phrasal Verb: jack off Vulgar Slang To masturbate.

Origin:

Origin: From the name Jack

Origin: , from Middle English Jakke

Origin: , possibly from Old French Jacques

Origin: , from Late Latin Iacōbus; see Jacob

Origin: . N., sense 15, short for jack shit

.

Related Forms:

  • jackˈer noun

Learn more about jack

jack

link/cite print suggestion box